Home / 9,528.20-13,148.62-5,279.43

Finding the Fourth Proportional to 9,528.20, 13,148.62 and 5,279.43

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Solution

The fourth proportional to 9,528.20, 13,148.62 and 5,279.43 is: 7,285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,528.20 : 13,148.62 = 5,279.43 : x
  2. Step 2: Convert to fraction form
    9,528.20/13,148.62 = 5,279.43/x
  3. Step 3: Cross multiply
    9,528.20x = 13,148.62 × 5,279.43
  4. Step 4: Simplify right side
    9,528.20x = 69,417,274.79
  5. Step 5: Solve for x
    x = 69,417,274.79/9,528.20
  6. Step 6: Final answer
    x = 7,285.46

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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.