Home / 10,127.79-15,191.15-3,201.75

Finding the Fourth Proportional to 10,127.79, 15,191.15 and 3,201.75

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Solution

The fourth proportional to 10,127.79, 15,191.15 and 3,201.75 is: 4,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.79 : 15,191.15 = 3,201.75 : x
  2. Step 2: Convert to fraction form
    10,127.79/15,191.15 = 3,201.75/x
  3. Step 3: Cross multiply
    10,127.79x = 15,191.15 × 3,201.75
  4. Step 4: Simplify right side
    10,127.79x = 48,638,248.50
  5. Step 5: Solve for x
    x = 48,638,248.50/10,127.79
  6. Step 6: Final answer
    x = 4,802.45

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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.