Home / 15,532.29-21,434.60-8,458.75

Finding the Fourth Proportional to 15,532.29, 21,434.60 and 8,458.75

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Solution

The fourth proportional to 15,532.29, 21,434.60 and 8,458.75 is: 11,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.29 : 21,434.60 = 8,458.75 : x
  2. Step 2: Convert to fraction form
    15,532.29/21,434.60 = 8,458.75/x
  3. Step 3: Cross multiply
    15,532.29x = 21,434.60 × 8,458.75
  4. Step 4: Simplify right side
    15,532.29x = 181,309,922.75
  5. Step 5: Solve for x
    x = 181,309,922.75/15,532.29
  6. Step 6: Final answer
    x = 11,673.10

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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.