Home / 11,298.81-15,592.76-6,821.70

Finding the Fourth Proportional to 11,298.81, 15,592.76 and 6,821.70

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Solution

The fourth proportional to 11,298.81, 15,592.76 and 6,821.70 is: 9,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298.81 : 15,592.76 = 6,821.70 : x
  2. Step 2: Convert to fraction form
    11,298.81/15,592.76 = 6,821.70/x
  3. Step 3: Cross multiply
    11,298.81x = 15,592.76 × 6,821.70
  4. Step 4: Simplify right side
    11,298.81x = 106,369,063.89
  5. Step 5: Solve for x
    x = 106,369,063.89/11,298.81
  6. Step 6: Final answer
    x = 9,414.18

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Double scale
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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.