Home / 15,990.08-22,065.36-9,275.24

Finding the Fourth Proportional to 15,990.08, 22,065.36 and 9,275.24

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Solution

The fourth proportional to 15,990.08, 22,065.36 and 9,275.24 is: 12,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.08 : 22,065.36 = 9,275.24 : x
  2. Step 2: Convert to fraction form
    15,990.08/22,065.36 = 9,275.24/x
  3. Step 3: Cross multiply
    15,990.08x = 22,065.36 × 9,275.24
  4. Step 4: Simplify right side
    15,990.08x = 204,661,509.69
  5. Step 5: Solve for x
    x = 204,661,509.69/15,990.08
  6. Step 6: Final answer
    x = 12,799.28

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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.