Home / 9,189.68-12,681.76-4,997.92

Finding the Fourth Proportional to 9,189.68, 12,681.76 and 4,997.92

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Solution

The fourth proportional to 9,189.68, 12,681.76 and 4,997.92 is: 6,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.68 : 12,681.76 = 4,997.92 : x
  2. Step 2: Convert to fraction form
    9,189.68/12,681.76 = 4,997.92/x
  3. Step 3: Cross multiply
    9,189.68x = 12,681.76 × 4,997.92
  4. Step 4: Simplify right side
    9,189.68x = 63,382,421.94
  5. Step 5: Solve for x
    x = 63,382,421.94/9,189.68
  6. Step 6: Final answer
    x = 6,897.13

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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.