Home / 15,446.40-23,137.20-12,530.40

Finding the Fourth Proportional to 15,446.40, 23,137.20 and 12,530.40

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Solution

The fourth proportional to 15,446.40, 23,137.20 and 12,530.40 is: 18,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.40 : 23,137.20 = 12,530.40 : x
  2. Step 2: Convert to fraction form
    15,446.40/23,137.20 = 12,530.40/x
  3. Step 3: Cross multiply
    15,446.40x = 23,137.20 × 12,530.40
  4. Step 4: Simplify right side
    15,446.40x = 289,918,370.88
  5. Step 5: Solve for x
    x = 289,918,370.88/15,446.40
  6. Step 6: Final answer
    x = 18,769.32

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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.