Home / 18,343.80-25,327.08-13,564.80

Finding the Fourth Proportional to 18,343.80, 25,327.08 and 13,564.80

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Solution

The fourth proportional to 18,343.80, 25,327.08 and 13,564.80 is: 18,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.80 : 25,327.08 = 13,564.80 : x
  2. Step 2: Convert to fraction form
    18,343.80/25,327.08 = 13,564.80/x
  3. Step 3: Cross multiply
    18,343.80x = 25,327.08 × 13,564.80
  4. Step 4: Simplify right side
    18,343.80x = 343,556,774.78
  5. Step 5: Solve for x
    x = 343,556,774.78/18,343.80
  6. Step 6: Final answer
    x = 18,728.77

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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.