Home / 12,319.26-16,985.73-8,545.65

Finding the Fourth Proportional to 12,319.26, 16,985.73 and 8,545.65

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Solution

The fourth proportional to 12,319.26, 16,985.73 and 8,545.65 is: 11,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.26 : 16,985.73 = 8,545.65 : x
  2. Step 2: Convert to fraction form
    12,319.26/16,985.73 = 8,545.65/x
  3. Step 3: Cross multiply
    12,319.26x = 16,985.73 × 8,545.65
  4. Step 4: Simplify right side
    12,319.26x = 145,154,103.57
  5. Step 5: Solve for x
    x = 145,154,103.57/12,319.26
  6. Step 6: Final answer
    x = 11,782.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.