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Finding the Fourth Proportional to 15,353.11, 23,010.72 and 7,953.31

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Solution

The fourth proportional to 15,353.11, 23,010.72 and 7,953.31 is: 11,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.11 : 23,010.72 = 7,953.31 : x
  2. Step 2: Convert to fraction form
    15,353.11/23,010.72 = 7,953.31/x
  3. Step 3: Cross multiply
    15,353.11x = 23,010.72 × 7,953.31
  4. Step 4: Simplify right side
    15,353.11x = 183,011,389.48
  5. Step 5: Solve for x
    x = 183,011,389.48/15,353.11
  6. Step 6: Final answer
    x = 11,920.15

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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.