Home / 8,878.34-13,306.92-4,128.08

Finding the Fourth Proportional to 8,878.34, 13,306.92 and 4,128.08

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Solution

The fourth proportional to 8,878.34, 13,306.92 and 4,128.08 is: 6,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.34 : 13,306.92 = 4,128.08 : x
  2. Step 2: Convert to fraction form
    8,878.34/13,306.92 = 4,128.08/x
  3. Step 3: Cross multiply
    8,878.34x = 13,306.92 × 4,128.08
  4. Step 4: Simplify right side
    8,878.34x = 54,932,030.31
  5. Step 5: Solve for x
    x = 54,932,030.31/8,878.34
  6. Step 6: Final answer
    x = 6,187.20

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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.