Home / 13,439.92-18,547.19-7,390.27

Finding the Fourth Proportional to 13,439.92, 18,547.19 and 7,390.27

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Solution

The fourth proportional to 13,439.92, 18,547.19 and 7,390.27 is: 10,198.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.92 : 18,547.19 = 7,390.27 : x
  2. Step 2: Convert to fraction form
    13,439.92/18,547.19 = 7,390.27/x
  3. Step 3: Cross multiply
    13,439.92x = 18,547.19 × 7,390.27
  4. Step 4: Simplify right side
    13,439.92x = 137,068,741.84
  5. Step 5: Solve for x
    x = 137,068,741.84/13,439.92
  6. Step 6: Final answer
    x = 10,198.63

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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.