Home / 11,191.60-15,444.80-6,156.20

Finding the Fourth Proportional to 11,191.60, 15,444.80 and 6,156.20

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Solution

The fourth proportional to 11,191.60, 15,444.80 and 6,156.20 is: 8,495.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.60 : 15,444.80 = 6,156.20 : x
  2. Step 2: Convert to fraction form
    11,191.60/15,444.80 = 6,156.20/x
  3. Step 3: Cross multiply
    11,191.60x = 15,444.80 × 6,156.20
  4. Step 4: Simplify right side
    11,191.60x = 95,081,277.76
  5. Step 5: Solve for x
    x = 95,081,277.76/11,191.60
  6. Step 6: Final answer
    x = 8,495.77

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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.