Home / 15,789.36-23,684.10-9,931.44

Finding the Fourth Proportional to 15,789.36, 23,684.10 and 9,931.44

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Solution

The fourth proportional to 15,789.36, 23,684.10 and 9,931.44 is: 14,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.36 : 23,684.10 = 9,931.44 : x
  2. Step 2: Convert to fraction form
    15,789.36/23,684.10 = 9,931.44/x
  3. Step 3: Cross multiply
    15,789.36x = 23,684.10 × 9,931.44
  4. Step 4: Simplify right side
    15,789.36x = 235,217,218.10
  5. Step 5: Solve for x
    x = 235,217,218.10/15,789.36
  6. Step 6: Final answer
    x = 14,897.20

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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.