Home / 15,742.76-21,722.70-8,935.73

Finding the Fourth Proportional to 15,742.76, 21,722.70 and 8,935.73

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Solution

The fourth proportional to 15,742.76, 21,722.70 and 8,935.73 is: 12,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.76 : 21,722.70 = 8,935.73 : x
  2. Step 2: Convert to fraction form
    15,742.76/21,722.70 = 8,935.73/x
  3. Step 3: Cross multiply
    15,742.76x = 21,722.70 × 8,935.73
  4. Step 4: Simplify right side
    15,742.76x = 194,108,182.07
  5. Step 5: Solve for x
    x = 194,108,182.07/15,742.76
  6. Step 6: Final answer
    x = 12,330.00

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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.