Home / 7,475.12-10,314.12-5,116.40

Finding the Fourth Proportional to 7,475.12, 10,314.12 and 5,116.40

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Solution

The fourth proportional to 7,475.12, 10,314.12 and 5,116.40 is: 7,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.12 : 10,314.12 = 5,116.40 : x
  2. Step 2: Convert to fraction form
    7,475.12/10,314.12 = 5,116.40/x
  3. Step 3: Cross multiply
    7,475.12x = 10,314.12 × 5,116.40
  4. Step 4: Simplify right side
    7,475.12x = 52,771,163.57
  5. Step 5: Solve for x
    x = 52,771,163.57/7,475.12
  6. Step 6: Final answer
    x = 7,059.57

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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.