Home / 10,781.40-14,872.89-6,302.23

Finding the Fourth Proportional to 10,781.40, 14,872.89 and 6,302.23

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Solution

The fourth proportional to 10,781.40, 14,872.89 and 6,302.23 is: 8,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.40 : 14,872.89 = 6,302.23 : x
  2. Step 2: Convert to fraction form
    10,781.40/14,872.89 = 6,302.23/x
  3. Step 3: Cross multiply
    10,781.40x = 14,872.89 × 6,302.23
  4. Step 4: Simplify right side
    10,781.40x = 93,732,267.67
  5. Step 5: Solve for x
    x = 93,732,267.67/10,781.40
  6. Step 6: Final answer
    x = 8,693.89

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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.