Home / 8,426.16-12,639.53-3,160.63

Finding the Fourth Proportional to 8,426.16, 12,639.53 and 3,160.63

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Solution

The fourth proportional to 8,426.16, 12,639.53 and 3,160.63 is: 4,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.16 : 12,639.53 = 3,160.63 : x
  2. Step 2: Convert to fraction form
    8,426.16/12,639.53 = 3,160.63/x
  3. Step 3: Cross multiply
    8,426.16x = 12,639.53 × 3,160.63
  4. Step 4: Simplify right side
    8,426.16x = 39,948,901.40
  5. Step 5: Solve for x
    x = 39,948,901.40/8,426.16
  6. Step 6: Final answer
    x = 4,741.06

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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.