Home / 10,959.68-15,128.30-6,487.26

Finding the Fourth Proportional to 10,959.68, 15,128.30 and 6,487.26

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Solution

The fourth proportional to 10,959.68, 15,128.30 and 6,487.26 is: 8,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.68 : 15,128.30 = 6,487.26 : x
  2. Step 2: Convert to fraction form
    10,959.68/15,128.30 = 6,487.26/x
  3. Step 3: Cross multiply
    10,959.68x = 15,128.30 × 6,487.26
  4. Step 4: Simplify right side
    10,959.68x = 98,141,215.46
  5. Step 5: Solve for x
    x = 98,141,215.46/10,959.68
  6. Step 6: Final answer
    x = 8,954.75

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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.