Home / 10,378.60-15,550.80-5,988.40

Finding the Fourth Proportional to 10,378.60, 15,550.80 and 5,988.40

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Solution

The fourth proportional to 10,378.60, 15,550.80 and 5,988.40 is: 8,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.60 : 15,550.80 = 5,988.40 : x
  2. Step 2: Convert to fraction form
    10,378.60/15,550.80 = 5,988.40/x
  3. Step 3: Cross multiply
    10,378.60x = 15,550.80 × 5,988.40
  4. Step 4: Simplify right side
    10,378.60x = 93,124,410.72
  5. Step 5: Solve for x
    x = 93,124,410.72/10,378.60
  6. Step 6: Final answer
    x = 8,972.73

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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.