Home / 7,474.32-10,314.80-4,117.20

Finding the Fourth Proportional to 7,474.32, 10,314.80 and 4,117.20

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Solution

The fourth proportional to 7,474.32, 10,314.80 and 4,117.20 is: 5,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.32 : 10,314.80 = 4,117.20 : x
  2. Step 2: Convert to fraction form
    7,474.32/10,314.80 = 4,117.20/x
  3. Step 3: Cross multiply
    7,474.32x = 10,314.80 × 4,117.20
  4. Step 4: Simplify right side
    7,474.32x = 42,468,094.56
  5. Step 5: Solve for x
    x = 42,468,094.56/7,474.32
  6. Step 6: Final answer
    x = 5,681.87

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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.