Home / 10,432.40-15,648.60-4,889.63

Finding the Fourth Proportional to 10,432.40, 15,648.60 and 4,889.63

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Solution

The fourth proportional to 10,432.40, 15,648.60 and 4,889.63 is: 7,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,432.40 : 15,648.60 = 4,889.63 : x
  2. Step 2: Convert to fraction form
    10,432.40/15,648.60 = 4,889.63/x
  3. Step 3: Cross multiply
    10,432.40x = 15,648.60 × 4,889.63
  4. Step 4: Simplify right side
    10,432.40x = 76,515,785.78
  5. Step 5: Solve for x
    x = 76,515,785.78/10,432.40
  6. Step 6: Final answer
    x = 7,334.44

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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.