Home / 10,335.20-15,541.20-8,645.60

Finding the Fourth Proportional to 10,335.20, 15,541.20 and 8,645.60

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Solution

The fourth proportional to 10,335.20, 15,541.20 and 8,645.60 is: 13,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,335.20 : 15,541.20 = 8,645.60 : x
  2. Step 2: Convert to fraction form
    10,335.20/15,541.20 = 8,645.60/x
  3. Step 3: Cross multiply
    10,335.20x = 15,541.20 × 8,645.60
  4. Step 4: Simplify right side
    10,335.20x = 134,362,998.72
  5. Step 5: Solve for x
    x = 134,362,998.72/10,335.20
  6. Step 6: Final answer
    x = 13,000.52

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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.