Home / 8,403.89-12,607.65-2,560.34

Finding the Fourth Proportional to 8,403.89, 12,607.65 and 2,560.34

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Solution

The fourth proportional to 8,403.89, 12,607.65 and 2,560.34 is: 3,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.89 : 12,607.65 = 2,560.34 : x
  2. Step 2: Convert to fraction form
    8,403.89/12,607.65 = 2,560.34/x
  3. Step 3: Cross multiply
    8,403.89x = 12,607.65 × 2,560.34
  4. Step 4: Simplify right side
    8,403.89x = 32,279,870.60
  5. Step 5: Solve for x
    x = 32,279,870.60/8,403.89
  6. Step 6: Final answer
    x = 3,841.06

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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.