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Finding the Fourth Proportional to 15,453.60, 23,182.02 and 6,689.40

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Solution

The fourth proportional to 15,453.60, 23,182.02 and 6,689.40 is: 10,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.60 : 23,182.02 = 6,689.40 : x
  2. Step 2: Convert to fraction form
    15,453.60/23,182.02 = 6,689.40/x
  3. Step 3: Cross multiply
    15,453.60x = 23,182.02 × 6,689.40
  4. Step 4: Simplify right side
    15,453.60x = 155,073,804.59
  5. Step 5: Solve for x
    x = 155,073,804.59/15,453.60
  6. Step 6: Final answer
    x = 10,034.80

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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.