Home / 11,309.16-15,608.10-6,342.12

Finding the Fourth Proportional to 11,309.16, 15,608.10 and 6,342.12

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Solution

The fourth proportional to 11,309.16, 15,608.10 and 6,342.12 is: 8,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.16 : 15,608.10 = 6,342.12 : x
  2. Step 2: Convert to fraction form
    11,309.16/15,608.10 = 6,342.12/x
  3. Step 3: Cross multiply
    11,309.16x = 15,608.10 × 6,342.12
  4. Step 4: Simplify right side
    11,309.16x = 98,988,443.17
  5. Step 5: Solve for x
    x = 98,988,443.17/11,309.16
  6. Step 6: Final answer
    x = 8,752.94

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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.