Home / 13,040.28-17,999.28-10,688.04

Finding the Fourth Proportional to 13,040.28, 17,999.28 and 10,688.04

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Solution

The fourth proportional to 13,040.28, 17,999.28 and 10,688.04 is: 14,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.28 : 17,999.28 = 10,688.04 : x
  2. Step 2: Convert to fraction form
    13,040.28/17,999.28 = 10,688.04/x
  3. Step 3: Cross multiply
    13,040.28x = 17,999.28 × 10,688.04
  4. Step 4: Simplify right side
    13,040.28x = 192,377,024.61
  5. Step 5: Solve for x
    x = 192,377,024.61/13,040.28
  6. Step 6: Final answer
    x = 14,752.52

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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.