Home / 9,678.20-14,528.10-9,043.70

Finding the Fourth Proportional to 9,678.20, 14,528.10 and 9,043.70

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Solution

The fourth proportional to 9,678.20, 14,528.10 and 9,043.70 is: 13,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.20 : 14,528.10 = 9,043.70 : x
  2. Step 2: Convert to fraction form
    9,678.20/14,528.10 = 9,043.70/x
  3. Step 3: Cross multiply
    9,678.20x = 14,528.10 × 9,043.70
  4. Step 4: Simplify right side
    9,678.20x = 131,387,777.97
  5. Step 5: Solve for x
    x = 131,387,777.97/9,678.20
  6. Step 6: Final answer
    x = 13,575.64

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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.