Home / 9,016.88-12,444.70-5,478.80

Finding the Fourth Proportional to 9,016.88, 12,444.70 and 5,478.80

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Solution

The fourth proportional to 9,016.88, 12,444.70 and 5,478.80 is: 7,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,016.88 : 12,444.70 = 5,478.80 : x
  2. Step 2: Convert to fraction form
    9,016.88/12,444.70 = 5,478.80/x
  3. Step 3: Cross multiply
    9,016.88x = 12,444.70 × 5,478.80
  4. Step 4: Simplify right side
    9,016.88x = 68,182,022.36
  5. Step 5: Solve for x
    x = 68,182,022.36/9,016.88
  6. Step 6: Final answer
    x = 7,561.60

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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.