Home / 11,019.60-15,205.56-6,543.60

Finding the Fourth Proportional to 11,019.60, 15,205.56 and 6,543.60

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Solution

The fourth proportional to 11,019.60, 15,205.56 and 6,543.60 is: 9,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.60 : 15,205.56 = 6,543.60 : x
  2. Step 2: Convert to fraction form
    11,019.60/15,205.56 = 6,543.60/x
  3. Step 3: Cross multiply
    11,019.60x = 15,205.56 × 6,543.60
  4. Step 4: Simplify right side
    11,019.60x = 99,499,102.42
  5. Step 5: Solve for x
    x = 99,499,102.42/11,019.60
  6. Step 6: Final answer
    x = 9,029.28

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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.