Home / 13,126.32-19,681.92-5,727.24

Finding the Fourth Proportional to 13,126.32, 19,681.92 and 5,727.24

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Solution

The fourth proportional to 13,126.32, 19,681.92 and 5,727.24 is: 8,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.32 : 19,681.92 = 5,727.24 : x
  2. Step 2: Convert to fraction form
    13,126.32/19,681.92 = 5,727.24/x
  3. Step 3: Cross multiply
    13,126.32x = 19,681.92 × 5,727.24
  4. Step 4: Simplify right side
    13,126.32x = 112,723,079.50
  5. Step 5: Solve for x
    x = 112,723,079.50/13,126.32
  6. Step 6: Final answer
    x = 8,587.56

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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.