Home / 13,781.47-20,655.79-9,598.83

Finding the Fourth Proportional to 13,781.47, 20,655.79 and 9,598.83

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Solution

The fourth proportional to 13,781.47, 20,655.79 and 9,598.83 is: 14,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.47 : 20,655.79 = 9,598.83 : x
  2. Step 2: Convert to fraction form
    13,781.47/20,655.79 = 9,598.83/x
  3. Step 3: Cross multiply
    13,781.47x = 20,655.79 × 9,598.83
  4. Step 4: Simplify right side
    13,781.47x = 198,271,416.73
  5. Step 5: Solve for x
    x = 198,271,416.73/13,781.47
  6. Step 6: Final answer
    x = 14,386.81

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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.