Home / 10,400.20-15,580.20-8,058.88

Finding the Fourth Proportional to 10,400.20, 15,580.20 and 8,058.88

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Solution

The fourth proportional to 10,400.20, 15,580.20 and 8,058.88 is: 12,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.20 : 15,580.20 = 8,058.88 : x
  2. Step 2: Convert to fraction form
    10,400.20/15,580.20 = 8,058.88/x
  3. Step 3: Cross multiply
    10,400.20x = 15,580.20 × 8,058.88
  4. Step 4: Simplify right side
    10,400.20x = 125,558,962.18
  5. Step 5: Solve for x
    x = 125,558,962.18/10,400.20
  6. Step 6: Final answer
    x = 12,072.74

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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.