Home / 9,126.38-13,689.94-2,886.51

Finding the Fourth Proportional to 9,126.38, 13,689.94 and 2,886.51

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Solution

The fourth proportional to 9,126.38, 13,689.94 and 2,886.51 is: 4,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.38 : 13,689.94 = 2,886.51 : x
  2. Step 2: Convert to fraction form
    9,126.38/13,689.94 = 2,886.51/x
  3. Step 3: Cross multiply
    9,126.38x = 13,689.94 × 2,886.51
  4. Step 4: Simplify right side
    9,126.38x = 39,516,148.71
  5. Step 5: Solve for x
    x = 39,516,148.71/9,126.38
  6. Step 6: Final answer
    x = 4,329.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.