Home / 18,217.05-25,139.03-10,259.10

Finding the Fourth Proportional to 18,217.05, 25,139.03 and 10,259.10

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Solution

The fourth proportional to 18,217.05, 25,139.03 and 10,259.10 is: 14,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.05 : 25,139.03 = 10,259.10 : x
  2. Step 2: Convert to fraction form
    18,217.05/25,139.03 = 10,259.10/x
  3. Step 3: Cross multiply
    18,217.05x = 25,139.03 × 10,259.10
  4. Step 4: Simplify right side
    18,217.05x = 257,903,771.38
  5. Step 5: Solve for x
    x = 257,903,771.38/18,217.05
  6. Step 6: Final answer
    x = 14,157.28

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Half scale
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Double scale
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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.