Home / 12,303.60-18,433.80-10,100.40

Finding the Fourth Proportional to 12,303.60, 18,433.80 and 10,100.40

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Solution

The fourth proportional to 12,303.60, 18,433.80 and 10,100.40 is: 15,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.60 : 18,433.80 = 10,100.40 : x
  2. Step 2: Convert to fraction form
    12,303.60/18,433.80 = 10,100.40/x
  3. Step 3: Cross multiply
    12,303.60x = 18,433.80 × 10,100.40
  4. Step 4: Simplify right side
    12,303.60x = 186,188,753.52
  5. Step 5: Solve for x
    x = 186,188,753.52/12,303.60
  6. Step 6: Final answer
    x = 15,132.87

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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.