Home / 12,474.16-17,216.57-7,438.70

Finding the Fourth Proportional to 12,474.16, 17,216.57 and 7,438.70

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Solution

The fourth proportional to 12,474.16, 17,216.57 and 7,438.70 is: 10,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.16 : 17,216.57 = 7,438.70 : x
  2. Step 2: Convert to fraction form
    12,474.16/17,216.57 = 7,438.70/x
  3. Step 3: Cross multiply
    12,474.16x = 17,216.57 × 7,438.70
  4. Step 4: Simplify right side
    12,474.16x = 128,068,899.26
  5. Step 5: Solve for x
    x = 128,068,899.26/12,474.16
  6. Step 6: Final answer
    x = 10,266.74

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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.