Home / 8,988.81-13,478.73-5,241.90

Finding the Fourth Proportional to 8,988.81, 13,478.73 and 5,241.90

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Solution

The fourth proportional to 8,988.81, 13,478.73 and 5,241.90 is: 7,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.81 : 13,478.73 = 5,241.90 : x
  2. Step 2: Convert to fraction form
    8,988.81/13,478.73 = 5,241.90/x
  3. Step 3: Cross multiply
    8,988.81x = 13,478.73 × 5,241.90
  4. Step 4: Simplify right side
    8,988.81x = 70,654,154.79
  5. Step 5: Solve for x
    x = 70,654,154.79/8,988.81
  6. Step 6: Final answer
    x = 7,860.23

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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.