Home / 10,117.08-13,961.67-5,641.20

Finding the Fourth Proportional to 10,117.08, 13,961.67 and 5,641.20

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Solution

The fourth proportional to 10,117.08, 13,961.67 and 5,641.20 is: 7,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.08 : 13,961.67 = 5,641.20 : x
  2. Step 2: Convert to fraction form
    10,117.08/13,961.67 = 5,641.20/x
  3. Step 3: Cross multiply
    10,117.08x = 13,961.67 × 5,641.20
  4. Step 4: Simplify right side
    10,117.08x = 78,760,572.80
  5. Step 5: Solve for x
    x = 78,760,572.80/10,117.08
  6. Step 6: Final answer
    x = 7,784.91

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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.