Home / 8,728.08-12,047.32-5,326.32

Finding the Fourth Proportional to 8,728.08, 12,047.32 and 5,326.32

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Solution

The fourth proportional to 8,728.08, 12,047.32 and 5,326.32 is: 7,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.08 : 12,047.32 = 5,326.32 : x
  2. Step 2: Convert to fraction form
    8,728.08/12,047.32 = 5,326.32/x
  3. Step 3: Cross multiply
    8,728.08x = 12,047.32 × 5,326.32
  4. Step 4: Simplify right side
    8,728.08x = 64,167,881.46
  5. Step 5: Solve for x
    x = 64,167,881.46/8,728.08
  6. Step 6: Final answer
    x = 7,351.89

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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.