Home / 12,713.61-19,070.53-5,221.29

Finding the Fourth Proportional to 12,713.61, 19,070.53 and 5,221.29

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Solution

The fourth proportional to 12,713.61, 19,070.53 and 5,221.29 is: 7,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.61 : 19,070.53 = 5,221.29 : x
  2. Step 2: Convert to fraction form
    12,713.61/19,070.53 = 5,221.29/x
  3. Step 3: Cross multiply
    12,713.61x = 19,070.53 × 5,221.29
  4. Step 4: Simplify right side
    12,713.61x = 99,572,754.53
  5. Step 5: Solve for x
    x = 99,572,754.53/12,713.61
  6. Step 6: Final answer
    x = 7,831.98

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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.