Home / 13,802.06-20,703.01-8,256.96

Finding the Fourth Proportional to 13,802.06, 20,703.01 and 8,256.96

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Solution

The fourth proportional to 13,802.06, 20,703.01 and 8,256.96 is: 12,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.06 : 20,703.01 = 8,256.96 : x
  2. Step 2: Convert to fraction form
    13,802.06/20,703.01 = 8,256.96/x
  3. Step 3: Cross multiply
    13,802.06x = 20,703.01 × 8,256.96
  4. Step 4: Simplify right side
    13,802.06x = 170,943,925.45
  5. Step 5: Solve for x
    x = 170,943,925.45/13,802.06
  6. Step 6: Final answer
    x = 12,385.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.