Home / 10,015.20-15,030.15-4,472.19

Finding the Fourth Proportional to 10,015.20, 15,030.15 and 4,472.19

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Solution

The fourth proportional to 10,015.20, 15,030.15 and 4,472.19 is: 6,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.20 : 15,030.15 = 4,472.19 : x
  2. Step 2: Convert to fraction form
    10,015.20/15,030.15 = 4,472.19/x
  3. Step 3: Cross multiply
    10,015.20x = 15,030.15 × 4,472.19
  4. Step 4: Simplify right side
    10,015.20x = 67,217,686.53
  5. Step 5: Solve for x
    x = 67,217,686.53/10,015.20
  6. Step 6: Final answer
    x = 6,711.57

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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.