Home / 10,959.10-15,119.86-6,240.04

Finding the Fourth Proportional to 10,959.10, 15,119.86 and 6,240.04

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Solution

The fourth proportional to 10,959.10, 15,119.86 and 6,240.04 is: 8,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.10 : 15,119.86 = 6,240.04 : x
  2. Step 2: Convert to fraction form
    10,959.10/15,119.86 = 6,240.04/x
  3. Step 3: Cross multiply
    10,959.10x = 15,119.86 × 6,240.04
  4. Step 4: Simplify right side
    10,959.10x = 94,348,531.19
  5. Step 5: Solve for x
    x = 94,348,531.19/10,959.10
  6. Step 6: Final answer
    x = 8,609.15

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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.