Home / 15,598.90-21,520.05-11,340.63

Finding the Fourth Proportional to 15,598.90, 21,520.05 and 11,340.63

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Solution

The fourth proportional to 15,598.90, 21,520.05 and 11,340.63 is: 15,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.90 : 21,520.05 = 11,340.63 : x
  2. Step 2: Convert to fraction form
    15,598.90/21,520.05 = 11,340.63/x
  3. Step 3: Cross multiply
    15,598.90x = 21,520.05 × 11,340.63
  4. Step 4: Simplify right side
    15,598.90x = 244,050,924.63
  5. Step 5: Solve for x
    x = 244,050,924.63/15,598.90
  6. Step 6: Final answer
    x = 15,645.39

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Half scale
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Double scale
Find fourth proportional to 15,599.90, 21,521.43 and 11,341.63
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.