Home / 11,178.86-15,427.25-6,701.76

Finding the Fourth Proportional to 11,178.86, 15,427.25 and 6,701.76

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Solution

The fourth proportional to 11,178.86, 15,427.25 and 6,701.76 is: 9,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.86 : 15,427.25 = 6,701.76 : x
  2. Step 2: Convert to fraction form
    11,178.86/15,427.25 = 6,701.76/x
  3. Step 3: Cross multiply
    11,178.86x = 15,427.25 × 6,701.76
  4. Step 4: Simplify right side
    11,178.86x = 103,389,693.45
  5. Step 5: Solve for x
    x = 103,389,693.45/11,178.86
  6. Step 6: Final answer
    x = 9,248.68

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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.