Home / 14,887.81-20,545.51-8,173.55

Finding the Fourth Proportional to 14,887.81, 20,545.51 and 8,173.55

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Solution

The fourth proportional to 14,887.81, 20,545.51 and 8,173.55 is: 11,279.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.81 : 20,545.51 = 8,173.55 : x
  2. Step 2: Convert to fraction form
    14,887.81/20,545.51 = 8,173.55/x
  3. Step 3: Cross multiply
    14,887.81x = 20,545.51 × 8,173.55
  4. Step 4: Simplify right side
    14,887.81x = 167,929,753.26
  5. Step 5: Solve for x
    x = 167,929,753.26/14,887.81
  6. Step 6: Final answer
    x = 11,279.68

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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.