Home / 15,458.48-21,331.82-9,084.08

Finding the Fourth Proportional to 15,458.48, 21,331.82 and 9,084.08

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Solution

The fourth proportional to 15,458.48, 21,331.82 and 9,084.08 is: 12,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.48 : 21,331.82 = 9,084.08 : x
  2. Step 2: Convert to fraction form
    15,458.48/21,331.82 = 9,084.08/x
  3. Step 3: Cross multiply
    15,458.48x = 21,331.82 × 9,084.08
  4. Step 4: Simplify right side
    15,458.48x = 193,779,959.43
  5. Step 5: Solve for x
    x = 193,779,959.43/15,458.48
  6. Step 6: Final answer
    x = 12,535.51

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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.