Home / 11,110.64-15,332.12-6,141.68

Finding the Fourth Proportional to 11,110.64, 15,332.12 and 6,141.68

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Solution

The fourth proportional to 11,110.64, 15,332.12 and 6,141.68 is: 8,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.64 : 15,332.12 = 6,141.68 : x
  2. Step 2: Convert to fraction form
    11,110.64/15,332.12 = 6,141.68/x
  3. Step 3: Cross multiply
    11,110.64x = 15,332.12 × 6,141.68
  4. Step 4: Simplify right side
    11,110.64x = 94,164,974.76
  5. Step 5: Solve for x
    x = 94,164,974.76/11,110.64
  6. Step 6: Final answer
    x = 8,475.21

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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.