Home / 15,439.26-21,306.35-9,065.93

Finding the Fourth Proportional to 15,439.26, 21,306.35 and 9,065.93

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Solution

The fourth proportional to 15,439.26, 21,306.35 and 9,065.93 is: 12,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.26 : 21,306.35 = 9,065.93 : x
  2. Step 2: Convert to fraction form
    15,439.26/21,306.35 = 9,065.93/x
  3. Step 3: Cross multiply
    15,439.26x = 21,306.35 × 9,065.93
  4. Step 4: Simplify right side
    15,439.26x = 193,161,912.68
  5. Step 5: Solve for x
    x = 193,161,912.68/15,439.26
  6. Step 6: Final answer
    x = 12,511.08

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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.