Home / 10,445.49-15,665.03-3,781.18

Finding the Fourth Proportional to 10,445.49, 15,665.03 and 3,781.18

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Solution

The fourth proportional to 10,445.49, 15,665.03 and 3,781.18 is: 5,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.49 : 15,665.03 = 3,781.18 : x
  2. Step 2: Convert to fraction form
    10,445.49/15,665.03 = 3,781.18/x
  3. Step 3: Cross multiply
    10,445.49x = 15,665.03 × 3,781.18
  4. Step 4: Simplify right side
    10,445.49x = 59,232,312.99
  5. Step 5: Solve for x
    x = 59,232,312.99/10,445.49
  6. Step 6: Final answer
    x = 5,670.61

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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.