Home / 9,412.16-12,988.70-5,163.14

Finding the Fourth Proportional to 9,412.16, 12,988.70 and 5,163.14

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Solution

The fourth proportional to 9,412.16, 12,988.70 and 5,163.14 is: 7,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.16 : 12,988.70 = 5,163.14 : x
  2. Step 2: Convert to fraction form
    9,412.16/12,988.70 = 5,163.14/x
  3. Step 3: Cross multiply
    9,412.16x = 12,988.70 × 5,163.14
  4. Step 4: Simplify right side
    9,412.16x = 67,062,385.76
  5. Step 5: Solve for x
    x = 67,062,385.76/9,412.16
  6. Step 6: Final answer
    x = 7,125.08

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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.