Home / 13,301.60-19,952.44-12,489.68

Finding the Fourth Proportional to 13,301.60, 19,952.44 and 12,489.68

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Solution

The fourth proportional to 13,301.60, 19,952.44 and 12,489.68 is: 18,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.60 : 19,952.44 = 12,489.68 : x
  2. Step 2: Convert to fraction form
    13,301.60/19,952.44 = 12,489.68/x
  3. Step 3: Cross multiply
    13,301.60x = 19,952.44 × 12,489.68
  4. Step 4: Simplify right side
    13,301.60x = 249,199,590.82
  5. Step 5: Solve for x
    x = 249,199,590.82/13,301.60
  6. Step 6: Final answer
    x = 18,734.56

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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.