Home / 13,306.55-18,361.06-7,641.53

Finding the Fourth Proportional to 13,306.55, 18,361.06 and 7,641.53

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Solution

The fourth proportional to 13,306.55, 18,361.06 and 7,641.53 is: 10,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.55 : 18,361.06 = 7,641.53 : x
  2. Step 2: Convert to fraction form
    13,306.55/18,361.06 = 7,641.53/x
  3. Step 3: Cross multiply
    13,306.55x = 18,361.06 × 7,641.53
  4. Step 4: Simplify right side
    13,306.55x = 140,306,666.00
  5. Step 5: Solve for x
    x = 140,306,666.00/13,306.55
  6. Step 6: Final answer
    x = 10,544.18

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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.