Home / 13,351.02-20,038.60-7,116.29

Finding the Fourth Proportional to 13,351.02, 20,038.60 and 7,116.29

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Solution

The fourth proportional to 13,351.02, 20,038.60 and 7,116.29 is: 10,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.02 : 20,038.60 = 7,116.29 : x
  2. Step 2: Convert to fraction form
    13,351.02/20,038.60 = 7,116.29/x
  3. Step 3: Cross multiply
    13,351.02x = 20,038.60 × 7,116.29
  4. Step 4: Simplify right side
    13,351.02x = 142,600,488.79
  5. Step 5: Solve for x
    x = 142,600,488.79/13,351.02
  6. Step 6: Final answer
    x = 10,680.87

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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.