Home / 8,780.07-12,117.63-5,004.58

Finding the Fourth Proportional to 8,780.07, 12,117.63 and 5,004.58

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Solution

The fourth proportional to 8,780.07, 12,117.63 and 5,004.58 is: 6,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.07 : 12,117.63 = 5,004.58 : x
  2. Step 2: Convert to fraction form
    8,780.07/12,117.63 = 5,004.58/x
  3. Step 3: Cross multiply
    8,780.07x = 12,117.63 × 5,004.58
  4. Step 4: Simplify right side
    8,780.07x = 60,643,648.75
  5. Step 5: Solve for x
    x = 60,643,648.75/8,780.07
  6. Step 6: Final answer
    x = 6,906.97

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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.