Home / 15,061.24-20,785.52-8,347.16

Finding the Fourth Proportional to 15,061.24, 20,785.52 and 8,347.16

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Solution

The fourth proportional to 15,061.24, 20,785.52 and 8,347.16 is: 11,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.24 : 20,785.52 = 8,347.16 : x
  2. Step 2: Convert to fraction form
    15,061.24/20,785.52 = 8,347.16/x
  3. Step 3: Cross multiply
    15,061.24x = 20,785.52 × 8,347.16
  4. Step 4: Simplify right side
    15,061.24x = 173,500,061.12
  5. Step 5: Solve for x
    x = 173,500,061.12/15,061.24
  6. Step 6: Final answer
    x = 11,519.64

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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.