Home / 14,085.80-21,127.60-3,697.28

Finding the Fourth Proportional to 14,085.80, 21,127.60 and 3,697.28

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Solution

The fourth proportional to 14,085.80, 21,127.60 and 3,697.28 is: 5,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.80 : 21,127.60 = 3,697.28 : x
  2. Step 2: Convert to fraction form
    14,085.80/21,127.60 = 3,697.28/x
  3. Step 3: Cross multiply
    14,085.80x = 21,127.60 × 3,697.28
  4. Step 4: Simplify right side
    14,085.80x = 78,114,652.93
  5. Step 5: Solve for x
    x = 78,114,652.93/14,085.80
  6. Step 6: Final answer
    x = 5,545.63

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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.