Home / 8,988.80-13,454.40-4,818.56

Finding the Fourth Proportional to 8,988.80, 13,454.40 and 4,818.56

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Solution

The fourth proportional to 8,988.80, 13,454.40 and 4,818.56 is: 7,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.80 : 13,454.40 = 4,818.56 : x
  2. Step 2: Convert to fraction form
    8,988.80/13,454.40 = 4,818.56/x
  3. Step 3: Cross multiply
    8,988.80x = 13,454.40 × 4,818.56
  4. Step 4: Simplify right side
    8,988.80x = 64,830,833.66
  5. Step 5: Solve for x
    x = 64,830,833.66/8,988.80
  6. Step 6: Final answer
    x = 7,212.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.