Home / 15,406.68-21,260.72-9,744.52

Finding the Fourth Proportional to 15,406.68, 21,260.72 and 9,744.52

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Solution

The fourth proportional to 15,406.68, 21,260.72 and 9,744.52 is: 13,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.68 : 21,260.72 = 9,744.52 : x
  2. Step 2: Convert to fraction form
    15,406.68/21,260.72 = 9,744.52/x
  3. Step 3: Cross multiply
    15,406.68x = 21,260.72 × 9,744.52
  4. Step 4: Simplify right side
    15,406.68x = 207,175,511.25
  5. Step 5: Solve for x
    x = 207,175,511.25/15,406.68
  6. Step 6: Final answer
    x = 13,447.12

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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.