Home / 12,152.40-18,228.60-9,673.80

Finding the Fourth Proportional to 12,152.40, 18,228.60 and 9,673.80

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Solution

The fourth proportional to 12,152.40, 18,228.60 and 9,673.80 is: 14,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.40 : 18,228.60 = 9,673.80 : x
  2. Step 2: Convert to fraction form
    12,152.40/18,228.60 = 9,673.80/x
  3. Step 3: Cross multiply
    12,152.40x = 18,228.60 × 9,673.80
  4. Step 4: Simplify right side
    12,152.40x = 176,339,830.68
  5. Step 5: Solve for x
    x = 176,339,830.68/12,152.40
  6. Step 6: Final answer
    x = 14,510.70

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Similar ratio
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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.