Home / 8,302.96-11,458.28-5,115.08

Finding the Fourth Proportional to 8,302.96, 11,458.28 and 5,115.08

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Solution

The fourth proportional to 8,302.96, 11,458.28 and 5,115.08 is: 7,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.96 : 11,458.28 = 5,115.08 : x
  2. Step 2: Convert to fraction form
    8,302.96/11,458.28 = 5,115.08/x
  3. Step 3: Cross multiply
    8,302.96x = 11,458.28 × 5,115.08
  4. Step 4: Simplify right side
    8,302.96x = 58,610,018.86
  5. Step 5: Solve for x
    x = 58,610,018.86/8,302.96
  6. Step 6: Final answer
    x = 7,058.93

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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.