Home / 10,120.72-13,959.54-6,717.10

Finding the Fourth Proportional to 10,120.72, 13,959.54 and 6,717.10

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Solution

The fourth proportional to 10,120.72, 13,959.54 and 6,717.10 is: 9,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.72 : 13,959.54 = 6,717.10 : x
  2. Step 2: Convert to fraction form
    10,120.72/13,959.54 = 6,717.10/x
  3. Step 3: Cross multiply
    10,120.72x = 13,959.54 × 6,717.10
  4. Step 4: Simplify right side
    10,120.72x = 93,767,626.13
  5. Step 5: Solve for x
    x = 93,767,626.13/10,120.72
  6. Step 6: Final answer
    x = 9,264.92

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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.