Home / 11,152.31-15,390.14-6,116.40

Finding the Fourth Proportional to 11,152.31, 15,390.14 and 6,116.40

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Solution

The fourth proportional to 11,152.31, 15,390.14 and 6,116.40 is: 8,440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.31 : 15,390.14 = 6,116.40 : x
  2. Step 2: Convert to fraction form
    11,152.31/15,390.14 = 6,116.40/x
  3. Step 3: Cross multiply
    11,152.31x = 15,390.14 × 6,116.40
  4. Step 4: Simplify right side
    11,152.31x = 94,132,221.71
  5. Step 5: Solve for x
    x = 94,132,221.71/11,152.31
  6. Step 6: Final answer
    x = 8,440.61

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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.