Home / 13,338.03-20,014.02-8,656.93

Finding the Fourth Proportional to 13,338.03, 20,014.02 and 8,656.93

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Solution

The fourth proportional to 13,338.03, 20,014.02 and 8,656.93 is: 12,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.03 : 20,014.02 = 8,656.93 : x
  2. Step 2: Convert to fraction form
    13,338.03/20,014.02 = 8,656.93/x
  3. Step 3: Cross multiply
    13,338.03x = 20,014.02 × 8,656.93
  4. Step 4: Simplify right side
    13,338.03x = 173,259,970.16
  5. Step 5: Solve for x
    x = 173,259,970.16/13,338.03
  6. Step 6: Final answer
    x = 12,989.92

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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.