Home / 15,911.48-23,867.29-5,381.56

Finding the Fourth Proportional to 15,911.48, 23,867.29 and 5,381.56

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Solution

The fourth proportional to 15,911.48, 23,867.29 and 5,381.56 is: 8,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.48 : 23,867.29 = 5,381.56 : x
  2. Step 2: Convert to fraction form
    15,911.48/23,867.29 = 5,381.56/x
  3. Step 3: Cross multiply
    15,911.48x = 23,867.29 × 5,381.56
  4. Step 4: Simplify right side
    15,911.48x = 128,443,253.17
  5. Step 5: Solve for x
    x = 128,443,253.17/15,911.48
  6. Step 6: Final answer
    x = 8,072.36

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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.