Home / 18,611.02-27,920.40-5,462.20

Finding the Fourth Proportional to 18,611.02, 27,920.40 and 5,462.20

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Solution

The fourth proportional to 18,611.02, 27,920.40 and 5,462.20 is: 8,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.02 : 27,920.40 = 5,462.20 : x
  2. Step 2: Convert to fraction form
    18,611.02/27,920.40 = 5,462.20/x
  3. Step 3: Cross multiply
    18,611.02x = 27,920.40 × 5,462.20
  4. Step 4: Simplify right side
    18,611.02x = 152,506,808.88
  5. Step 5: Solve for x
    x = 152,506,808.88/18,611.02
  6. Step 6: Final answer
    x = 8,194.44

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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.