Home / 8,637.40-12,955.96-3,089.24

Finding the Fourth Proportional to 8,637.40, 12,955.96 and 3,089.24

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Solution

The fourth proportional to 8,637.40, 12,955.96 and 3,089.24 is: 4,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.40 : 12,955.96 = 3,089.24 : x
  2. Step 2: Convert to fraction form
    8,637.40/12,955.96 = 3,089.24/x
  3. Step 3: Cross multiply
    8,637.40x = 12,955.96 × 3,089.24
  4. Step 4: Simplify right side
    8,637.40x = 40,024,069.87
  5. Step 5: Solve for x
    x = 40,024,069.87/8,637.40
  6. Step 6: Final answer
    x = 4,633.81

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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.