Home / 15,865.38-21,884.32-10,207.50

Finding the Fourth Proportional to 15,865.38, 21,884.32 and 10,207.50

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Solution

The fourth proportional to 15,865.38, 21,884.32 and 10,207.50 is: 14,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.38 : 21,884.32 = 10,207.50 : x
  2. Step 2: Convert to fraction form
    15,865.38/21,884.32 = 10,207.50/x
  3. Step 3: Cross multiply
    15,865.38x = 21,884.32 × 10,207.50
  4. Step 4: Simplify right side
    15,865.38x = 223,384,196.40
  5. Step 5: Solve for x
    x = 223,384,196.40/15,865.38
  6. Step 6: Final answer
    x = 14,079.98

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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.