Home / 8,409.30-12,607.47-2,859.18

Finding the Fourth Proportional to 8,409.30, 12,607.47 and 2,859.18

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Solution

The fourth proportional to 8,409.30, 12,607.47 and 2,859.18 is: 4,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.30 : 12,607.47 = 2,859.18 : x
  2. Step 2: Convert to fraction form
    8,409.30/12,607.47 = 2,859.18/x
  3. Step 3: Cross multiply
    8,409.30x = 12,607.47 × 2,859.18
  4. Step 4: Simplify right side
    8,409.30x = 36,047,026.07
  5. Step 5: Solve for x
    x = 36,047,026.07/8,409.30
  6. Step 6: Final answer
    x = 4,286.57

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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.