Home / 8,987.04-13,474.08-3,142.08

Finding the Fourth Proportional to 8,987.04, 13,474.08 and 3,142.08

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Solution

The fourth proportional to 8,987.04, 13,474.08 and 3,142.08 is: 4,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.04 : 13,474.08 = 3,142.08 : x
  2. Step 2: Convert to fraction form
    8,987.04/13,474.08 = 3,142.08/x
  3. Step 3: Cross multiply
    8,987.04x = 13,474.08 × 3,142.08
  4. Step 4: Simplify right side
    8,987.04x = 42,336,637.29
  5. Step 5: Solve for x
    x = 42,336,637.29/8,987.04
  6. Step 6: Final answer
    x = 4,710.85

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1.5x scale

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.