Home / 15,555.29-21,465.83-8,841.65

Finding the Fourth Proportional to 15,555.29, 21,465.83 and 8,841.65

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Solution

The fourth proportional to 15,555.29, 21,465.83 and 8,841.65 is: 12,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.29 : 21,465.83 = 8,841.65 : x
  2. Step 2: Convert to fraction form
    15,555.29/21,465.83 = 8,841.65/x
  3. Step 3: Cross multiply
    15,555.29x = 21,465.83 × 8,841.65
  4. Step 4: Simplify right side
    15,555.29x = 189,793,270.59
  5. Step 5: Solve for x
    x = 189,793,270.59/15,555.29
  6. Step 6: Final answer
    x = 12,201.21

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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.