Home / 13,340.10-20,010.06-12,528.21

Finding the Fourth Proportional to 13,340.10, 20,010.06 and 12,528.21

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Solution

The fourth proportional to 13,340.10, 20,010.06 and 12,528.21 is: 18,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.10 : 20,010.06 = 12,528.21 : x
  2. Step 2: Convert to fraction form
    13,340.10/20,010.06 = 12,528.21/x
  3. Step 3: Cross multiply
    13,340.10x = 20,010.06 × 12,528.21
  4. Step 4: Simplify right side
    13,340.10x = 250,690,233.79
  5. Step 5: Solve for x
    x = 250,690,233.79/13,340.10
  6. Step 6: Final answer
    x = 18,792.23

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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.