Home / 8,780.81-12,116.08-5,004.03

Finding the Fourth Proportional to 8,780.81, 12,116.08 and 5,004.03

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Solution

The fourth proportional to 8,780.81, 12,116.08 and 5,004.03 is: 6,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.81 : 12,116.08 = 5,004.03 : x
  2. Step 2: Convert to fraction form
    8,780.81/12,116.08 = 5,004.03/x
  3. Step 3: Cross multiply
    8,780.81x = 12,116.08 × 5,004.03
  4. Step 4: Simplify right side
    8,780.81x = 60,629,215.29
  5. Step 5: Solve for x
    x = 60,629,215.29/8,780.81
  6. Step 6: Final answer
    x = 6,904.74

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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.