Home / 15,364.08-21,202.80-8,649.93

Finding the Fourth Proportional to 15,364.08, 21,202.80 and 8,649.93

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Solution

The fourth proportional to 15,364.08, 21,202.80 and 8,649.93 is: 11,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.08 : 21,202.80 = 8,649.93 : x
  2. Step 2: Convert to fraction form
    15,364.08/21,202.80 = 8,649.93/x
  3. Step 3: Cross multiply
    15,364.08x = 21,202.80 × 8,649.93
  4. Step 4: Simplify right side
    15,364.08x = 183,402,735.80
  5. Step 5: Solve for x
    x = 183,402,735.80/15,364.08
  6. Step 6: Final answer
    x = 11,937.11

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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.