Home / 13,320.02-18,380.84-7,351.53

Finding the Fourth Proportional to 13,320.02, 18,380.84 and 7,351.53

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Solution

The fourth proportional to 13,320.02, 18,380.84 and 7,351.53 is: 10,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.02 : 18,380.84 = 7,351.53 : x
  2. Step 2: Convert to fraction form
    13,320.02/18,380.84 = 7,351.53/x
  3. Step 3: Cross multiply
    13,320.02x = 18,380.84 × 7,351.53
  4. Step 4: Simplify right side
    13,320.02x = 135,127,259.93
  5. Step 5: Solve for x
    x = 135,127,259.93/13,320.02
  6. Step 6: Final answer
    x = 10,144.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.