Home / 14,084.55-19,438.79-8,781.08

Finding the Fourth Proportional to 14,084.55, 19,438.79 and 8,781.08

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Solution

The fourth proportional to 14,084.55, 19,438.79 and 8,781.08 is: 12,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,084.55 : 19,438.79 = 8,781.08 : x
  2. Step 2: Convert to fraction form
    14,084.55/19,438.79 = 8,781.08/x
  3. Step 3: Cross multiply
    14,084.55x = 19,438.79 × 8,781.08
  4. Step 4: Simplify right side
    14,084.55x = 170,693,428.99
  5. Step 5: Solve for x
    x = 170,693,428.99/14,084.55
  6. Step 6: Final answer
    x = 12,119.20

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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.