Home / 6,987.16-10,528.48-5,781.04

Finding the Fourth Proportional to 6,987.16, 10,528.48 and 5,781.04

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Solution

The fourth proportional to 6,987.16, 10,528.48 and 5,781.04 is: 8,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.16 : 10,528.48 = 5,781.04 : x
  2. Step 2: Convert to fraction form
    6,987.16/10,528.48 = 5,781.04/x
  3. Step 3: Cross multiply
    6,987.16x = 10,528.48 × 5,781.04
  4. Step 4: Simplify right side
    6,987.16x = 60,865,564.02
  5. Step 5: Solve for x
    x = 60,865,564.02/6,987.16
  6. Step 6: Final answer
    x = 8,711.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.