Home / 13,538.02-20,304.55-6,140.70

Finding the Fourth Proportional to 13,538.02, 20,304.55 and 6,140.70

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Solution

The fourth proportional to 13,538.02, 20,304.55 and 6,140.70 is: 9,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.02 : 20,304.55 = 6,140.70 : x
  2. Step 2: Convert to fraction form
    13,538.02/20,304.55 = 6,140.70/x
  3. Step 3: Cross multiply
    13,538.02x = 20,304.55 × 6,140.70
  4. Step 4: Simplify right side
    13,538.02x = 124,684,150.19
  5. Step 5: Solve for x
    x = 124,684,150.19/13,538.02
  6. Step 6: Final answer
    x = 9,209.93

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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.