Home / 15,866.26-21,895.40-8,696.18

Finding the Fourth Proportional to 15,866.26, 21,895.40 and 8,696.18

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Solution

The fourth proportional to 15,866.26, 21,895.40 and 8,696.18 is: 12,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.26 : 21,895.40 = 8,696.18 : x
  2. Step 2: Convert to fraction form
    15,866.26/21,895.40 = 8,696.18/x
  3. Step 3: Cross multiply
    15,866.26x = 21,895.40 × 8,696.18
  4. Step 4: Simplify right side
    15,866.26x = 190,406,339.57
  5. Step 5: Solve for x
    x = 190,406,339.57/15,866.26
  6. Step 6: Final answer
    x = 12,000.71

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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.