Home / 12,174.60-18,276.30-12,088.20

Finding the Fourth Proportional to 12,174.60, 18,276.30 and 12,088.20

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Solution

The fourth proportional to 12,174.60, 18,276.30 and 12,088.20 is: 18,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.60 : 18,276.30 = 12,088.20 : x
  2. Step 2: Convert to fraction form
    12,174.60/18,276.30 = 12,088.20/x
  3. Step 3: Cross multiply
    12,174.60x = 18,276.30 × 12,088.20
  4. Step 4: Simplify right side
    12,174.60x = 220,927,569.66
  5. Step 5: Solve for x
    x = 220,927,569.66/12,174.60
  6. Step 6: Final answer
    x = 18,146.60

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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.