Home / 13,561.55-18,712.78-7,593.47

Finding the Fourth Proportional to 13,561.55, 18,712.78 and 7,593.47

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Solution

The fourth proportional to 13,561.55, 18,712.78 and 7,593.47 is: 10,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.55 : 18,712.78 = 7,593.47 : x
  2. Step 2: Convert to fraction form
    13,561.55/18,712.78 = 7,593.47/x
  3. Step 3: Cross multiply
    13,561.55x = 18,712.78 × 7,593.47
  4. Step 4: Simplify right side
    13,561.55x = 142,094,933.55
  5. Step 5: Solve for x
    x = 142,094,933.55/13,561.55
  6. Step 6: Final answer
    x = 10,477.78

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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.