Home / 10,107.64-15,156.30-7,585.78

Finding the Fourth Proportional to 10,107.64, 15,156.30 and 7,585.78

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Solution

The fourth proportional to 10,107.64, 15,156.30 and 7,585.78 is: 11,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.64 : 15,156.30 = 7,585.78 : x
  2. Step 2: Convert to fraction form
    10,107.64/15,156.30 = 7,585.78/x
  3. Step 3: Cross multiply
    10,107.64x = 15,156.30 × 7,585.78
  4. Step 4: Simplify right side
    10,107.64x = 114,972,357.41
  5. Step 5: Solve for x
    x = 114,972,357.41/10,107.64
  6. Step 6: Final answer
    x = 11,374.80

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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.