Home / 13,437.80-20,156.74-4,077.89

Finding the Fourth Proportional to 13,437.80, 20,156.74 and 4,077.89

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Solution

The fourth proportional to 13,437.80, 20,156.74 and 4,077.89 is: 6,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.80 : 20,156.74 = 4,077.89 : x
  2. Step 2: Convert to fraction form
    13,437.80/20,156.74 = 4,077.89/x
  3. Step 3: Cross multiply
    13,437.80x = 20,156.74 × 4,077.89
  4. Step 4: Simplify right side
    13,437.80x = 82,196,968.48
  5. Step 5: Solve for x
    x = 82,196,968.48/13,437.80
  6. Step 6: Final answer
    x = 6,116.85

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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.