Home / 14,545.83-20,073.37-8,172.55

Finding the Fourth Proportional to 14,545.83, 20,073.37 and 8,172.55

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Solution

The fourth proportional to 14,545.83, 20,073.37 and 8,172.55 is: 11,278.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.83 : 20,073.37 = 8,172.55 : x
  2. Step 2: Convert to fraction form
    14,545.83/20,073.37 = 8,172.55/x
  3. Step 3: Cross multiply
    14,545.83x = 20,073.37 × 8,172.55
  4. Step 4: Simplify right side
    14,545.83x = 164,050,519.63
  5. Step 5: Solve for x
    x = 164,050,519.63/14,545.83
  6. Step 6: Final answer
    x = 11,278.18

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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.