Home / 12,225.74-18,342.05-5,989.28

Finding the Fourth Proportional to 12,225.74, 18,342.05 and 5,989.28

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Solution

The fourth proportional to 12,225.74, 18,342.05 and 5,989.28 is: 8,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.74 : 18,342.05 = 5,989.28 : x
  2. Step 2: Convert to fraction form
    12,225.74/18,342.05 = 5,989.28/x
  3. Step 3: Cross multiply
    12,225.74x = 18,342.05 × 5,989.28
  4. Step 4: Simplify right side
    12,225.74x = 109,855,551.57
  5. Step 5: Solve for x
    x = 109,855,551.57/12,225.74
  6. Step 6: Final answer
    x = 8,985.60

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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.