Home / 11,990.57-16,547.45-6,613.38

Finding the Fourth Proportional to 11,990.57, 16,547.45 and 6,613.38

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Solution

The fourth proportional to 11,990.57, 16,547.45 and 6,613.38 is: 9,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.57 : 16,547.45 = 6,613.38 : x
  2. Step 2: Convert to fraction form
    11,990.57/16,547.45 = 6,613.38/x
  3. Step 3: Cross multiply
    11,990.57x = 16,547.45 × 6,613.38
  4. Step 4: Simplify right side
    11,990.57x = 109,434,541.81
  5. Step 5: Solve for x
    x = 109,434,541.81/11,990.57
  6. Step 6: Final answer
    x = 9,126.72

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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.