Home / 8,626.10-12,931.23-2,779.70

Finding the Fourth Proportional to 8,626.10, 12,931.23 and 2,779.70

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Solution

The fourth proportional to 8,626.10, 12,931.23 and 2,779.70 is: 4,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.10 : 12,931.23 = 2,779.70 : x
  2. Step 2: Convert to fraction form
    8,626.10/12,931.23 = 2,779.70/x
  3. Step 3: Cross multiply
    8,626.10x = 12,931.23 × 2,779.70
  4. Step 4: Simplify right side
    8,626.10x = 35,944,940.03
  5. Step 5: Solve for x
    x = 35,944,940.03/8,626.10
  6. Step 6: Final answer
    x = 4,167.00

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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.