Home / 10,510.60-15,744.30-5,319.40

Finding the Fourth Proportional to 10,510.60, 15,744.30 and 5,319.40

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Solution

The fourth proportional to 10,510.60, 15,744.30 and 5,319.40 is: 7,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.60 : 15,744.30 = 5,319.40 : x
  2. Step 2: Convert to fraction form
    10,510.60/15,744.30 = 5,319.40/x
  3. Step 3: Cross multiply
    10,510.60x = 15,744.30 × 5,319.40
  4. Step 4: Simplify right side
    10,510.60x = 83,750,229.42
  5. Step 5: Solve for x
    x = 83,750,229.42/10,510.60
  6. Step 6: Final answer
    x = 7,968.17

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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.