Home / 13,292.60-19,938.93-12,480.68

Finding the Fourth Proportional to 13,292.60, 19,938.93 and 12,480.68

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Solution

The fourth proportional to 13,292.60, 19,938.93 and 12,480.68 is: 18,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.60 : 19,938.93 = 12,480.68 : x
  2. Step 2: Convert to fraction form
    13,292.60/19,938.93 = 12,480.68/x
  3. Step 3: Cross multiply
    13,292.60x = 19,938.93 × 12,480.68
  4. Step 4: Simplify right side
    13,292.60x = 248,851,404.87
  5. Step 5: Solve for x
    x = 248,851,404.87/13,292.60
  6. Step 6: Final answer
    x = 18,721.05

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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.