Home / 10,423.84-14,391.12-9,257.44

Finding the Fourth Proportional to 10,423.84, 14,391.12 and 9,257.44

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Solution

The fourth proportional to 10,423.84, 14,391.12 and 9,257.44 is: 12,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.84 : 14,391.12 = 9,257.44 : x
  2. Step 2: Convert to fraction form
    10,423.84/14,391.12 = 9,257.44/x
  3. Step 3: Cross multiply
    10,423.84x = 14,391.12 × 9,257.44
  4. Step 4: Simplify right side
    10,423.84x = 133,224,929.93
  5. Step 5: Solve for x
    x = 133,224,929.93/10,423.84
  6. Step 6: Final answer
    x = 12,780.79

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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.