Home / 15,780.84-23,672.52-9,207.70

Finding the Fourth Proportional to 15,780.84, 23,672.52 and 9,207.70

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Solution

The fourth proportional to 15,780.84, 23,672.52 and 9,207.70 is: 13,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.84 : 23,672.52 = 9,207.70 : x
  2. Step 2: Convert to fraction form
    15,780.84/23,672.52 = 9,207.70/x
  3. Step 3: Cross multiply
    15,780.84x = 23,672.52 × 9,207.70
  4. Step 4: Simplify right side
    15,780.84x = 217,969,462.40
  5. Step 5: Solve for x
    x = 217,969,462.40/15,780.84
  6. Step 6: Final answer
    x = 13,812.29

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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.