Home / 7,474.28-10,315.32-4,117.44

Finding the Fourth Proportional to 7,474.28, 10,315.32 and 4,117.44

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Solution

The fourth proportional to 7,474.28, 10,315.32 and 4,117.44 is: 5,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.28 : 10,315.32 = 4,117.44 : x
  2. Step 2: Convert to fraction form
    7,474.28/10,315.32 = 4,117.44/x
  3. Step 3: Cross multiply
    7,474.28x = 10,315.32 × 4,117.44
  4. Step 4: Simplify right side
    7,474.28x = 42,472,711.18
  5. Step 5: Solve for x
    x = 42,472,711.18/7,474.28
  6. Step 6: Final answer
    x = 5,682.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.