Home / 10,124.34-15,165.51-8,558.88

Finding the Fourth Proportional to 10,124.34, 15,165.51 and 8,558.88

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Solution

The fourth proportional to 10,124.34, 15,165.51 and 8,558.88 is: 12,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.34 : 15,165.51 = 8,558.88 : x
  2. Step 2: Convert to fraction form
    10,124.34/15,165.51 = 8,558.88/x
  3. Step 3: Cross multiply
    10,124.34x = 15,165.51 × 8,558.88
  4. Step 4: Simplify right side
    10,124.34x = 129,799,780.23
  5. Step 5: Solve for x
    x = 129,799,780.23/10,124.34
  6. Step 6: Final answer
    x = 12,820.57

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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.