Home / 13,591.07-18,747.71-8,547.29

Finding the Fourth Proportional to 13,591.07, 18,747.71 and 8,547.29

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Solution

The fourth proportional to 13,591.07, 18,747.71 and 8,547.29 is: 11,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.07 : 18,747.71 = 8,547.29 : x
  2. Step 2: Convert to fraction form
    13,591.07/18,747.71 = 8,547.29/x
  3. Step 3: Cross multiply
    13,591.07x = 18,747.71 × 8,547.29
  4. Step 4: Simplify right side
    13,591.07x = 160,242,045.97
  5. Step 5: Solve for x
    x = 160,242,045.97/13,591.07
  6. Step 6: Final answer
    x = 11,790.25

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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.