Home / 11,191.02-15,445.35-6,411.12

Finding the Fourth Proportional to 11,191.02, 15,445.35 and 6,411.12

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Solution

The fourth proportional to 11,191.02, 15,445.35 and 6,411.12 is: 8,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.02 : 15,445.35 = 6,411.12 : x
  2. Step 2: Convert to fraction form
    11,191.02/15,445.35 = 6,411.12/x
  3. Step 3: Cross multiply
    11,191.02x = 15,445.35 × 6,411.12
  4. Step 4: Simplify right side
    11,191.02x = 99,021,992.29
  5. Step 5: Solve for x
    x = 99,021,992.29/11,191.02
  6. Step 6: Final answer
    x = 8,848.34

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Double scale
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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.