Home / 18,590.72-25,655.36-10,207.28

Finding the Fourth Proportional to 18,590.72, 25,655.36 and 10,207.28

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Solution

The fourth proportional to 18,590.72, 25,655.36 and 10,207.28 is: 14,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.72 : 25,655.36 = 10,207.28 : x
  2. Step 2: Convert to fraction form
    18,590.72/25,655.36 = 10,207.28/x
  3. Step 3: Cross multiply
    18,590.72x = 25,655.36 × 10,207.28
  4. Step 4: Simplify right side
    18,590.72x = 261,871,443.02
  5. Step 5: Solve for x
    x = 261,871,443.02/18,590.72
  6. Step 6: Final answer
    x = 14,086.14

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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.