Home / 8,851.80-13,271.55-3,918.75

Finding the Fourth Proportional to 8,851.80, 13,271.55 and 3,918.75

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Solution

The fourth proportional to 8,851.80, 13,271.55 and 3,918.75 is: 5,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.80 : 13,271.55 = 3,918.75 : x
  2. Step 2: Convert to fraction form
    8,851.80/13,271.55 = 3,918.75/x
  3. Step 3: Cross multiply
    8,851.80x = 13,271.55 × 3,918.75
  4. Step 4: Simplify right side
    8,851.80x = 52,007,822.10
  5. Step 5: Solve for x
    x = 52,007,822.10/8,851.80
  6. Step 6: Final answer
    x = 5,875.40

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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.