Home / 9,130.68-12,600.12-5,151.69

Finding the Fourth Proportional to 9,130.68, 12,600.12 and 5,151.69

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Solution

The fourth proportional to 9,130.68, 12,600.12 and 5,151.69 is: 7,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.68 : 12,600.12 = 5,151.69 : x
  2. Step 2: Convert to fraction form
    9,130.68/12,600.12 = 5,151.69/x
  3. Step 3: Cross multiply
    9,130.68x = 12,600.12 × 5,151.69
  4. Step 4: Simplify right side
    9,130.68x = 64,911,912.20
  5. Step 5: Solve for x
    x = 64,911,912.20/9,130.68
  6. Step 6: Final answer
    x = 7,109.21

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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.