Home / 10,842.30-16,263.45-9,821.70

Finding the Fourth Proportional to 10,842.30, 16,263.45 and 9,821.70

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Solution

The fourth proportional to 10,842.30, 16,263.45 and 9,821.70 is: 14,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.30 : 16,263.45 = 9,821.70 : x
  2. Step 2: Convert to fraction form
    10,842.30/16,263.45 = 9,821.70/x
  3. Step 3: Cross multiply
    10,842.30x = 16,263.45 × 9,821.70
  4. Step 4: Simplify right side
    10,842.30x = 159,734,726.87
  5. Step 5: Solve for x
    x = 159,734,726.87/10,842.30
  6. Step 6: Final answer
    x = 14,732.55

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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.