Home / 13,461.39-20,177.91-6,437.07

Finding the Fourth Proportional to 13,461.39, 20,177.91 and 6,437.07

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Solution

The fourth proportional to 13,461.39, 20,177.91 and 6,437.07 is: 9,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.39 : 20,177.91 = 6,437.07 : x
  2. Step 2: Convert to fraction form
    13,461.39/20,177.91 = 6,437.07/x
  3. Step 3: Cross multiply
    13,461.39x = 20,177.91 × 6,437.07
  4. Step 4: Simplify right side
    13,461.39x = 129,886,619.12
  5. Step 5: Solve for x
    x = 129,886,619.12/13,461.39
  6. Step 6: Final answer
    x = 9,648.83

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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.