Home / 8,622.44-12,931.74-3,426.92

Finding the Fourth Proportional to 8,622.44, 12,931.74 and 3,426.92

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Solution

The fourth proportional to 8,622.44, 12,931.74 and 3,426.92 is: 5,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.44 : 12,931.74 = 3,426.92 : x
  2. Step 2: Convert to fraction form
    8,622.44/12,931.74 = 3,426.92/x
  3. Step 3: Cross multiply
    8,622.44x = 12,931.74 × 3,426.92
  4. Step 4: Simplify right side
    8,622.44x = 44,316,038.44
  5. Step 5: Solve for x
    x = 44,316,038.44/8,622.44
  6. Step 6: Final answer
    x = 5,139.62

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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.