Home / 11,161.01-15,402.06-6,445.19

Finding the Fourth Proportional to 11,161.01, 15,402.06 and 6,445.19

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Solution

The fourth proportional to 11,161.01, 15,402.06 and 6,445.19 is: 8,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.01 : 15,402.06 = 6,445.19 : x
  2. Step 2: Convert to fraction form
    11,161.01/15,402.06 = 6,445.19/x
  3. Step 3: Cross multiply
    11,161.01x = 15,402.06 × 6,445.19
  4. Step 4: Simplify right side
    11,161.01x = 99,269,126.08
  5. Step 5: Solve for x
    x = 99,269,126.08/11,161.01
  6. Step 6: Final answer
    x = 8,894.28

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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.