Home / 9,011.52-13,488.96-5,728.32

Finding the Fourth Proportional to 9,011.52, 13,488.96 and 5,728.32

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Solution

The fourth proportional to 9,011.52, 13,488.96 and 5,728.32 is: 8,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.52 : 13,488.96 = 5,728.32 : x
  2. Step 2: Convert to fraction form
    9,011.52/13,488.96 = 5,728.32/x
  3. Step 3: Cross multiply
    9,011.52x = 13,488.96 × 5,728.32
  4. Step 4: Simplify right side
    9,011.52x = 77,269,079.35
  5. Step 5: Solve for x
    x = 77,269,079.35/9,011.52
  6. Step 6: Final answer
    x = 8,574.48

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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.