Home / 13,740.12-20,598.02-6,620.76

Finding the Fourth Proportional to 13,740.12, 20,598.02 and 6,620.76

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Solution

The fourth proportional to 13,740.12, 20,598.02 and 6,620.76 is: 9,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.12 : 20,598.02 = 6,620.76 : x
  2. Step 2: Convert to fraction form
    13,740.12/20,598.02 = 6,620.76/x
  3. Step 3: Cross multiply
    13,740.12x = 20,598.02 × 6,620.76
  4. Step 4: Simplify right side
    13,740.12x = 136,374,546.90
  5. Step 5: Solve for x
    x = 136,374,546.90/13,740.12
  6. Step 6: Final answer
    x = 9,925.28

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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.