Home / 13,298.40-19,957.20-5,512.80

Finding the Fourth Proportional to 13,298.40, 19,957.20 and 5,512.80

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Solution

The fourth proportional to 13,298.40, 19,957.20 and 5,512.80 is: 8,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.40 : 19,957.20 = 5,512.80 : x
  2. Step 2: Convert to fraction form
    13,298.40/19,957.20 = 5,512.80/x
  3. Step 3: Cross multiply
    13,298.40x = 19,957.20 × 5,512.80
  4. Step 4: Simplify right side
    13,298.40x = 110,020,052.16
  5. Step 5: Solve for x
    x = 110,020,052.16/13,298.40
  6. Step 6: Final answer
    x = 8,273.18

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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.