Home / 18,618.93-25,693.43-10,655.51

Finding the Fourth Proportional to 18,618.93, 25,693.43 and 10,655.51

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Solution

The fourth proportional to 18,618.93, 25,693.43 and 10,655.51 is: 14,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.93 : 25,693.43 = 10,655.51 : x
  2. Step 2: Convert to fraction form
    18,618.93/25,693.43 = 10,655.51/x
  3. Step 3: Cross multiply
    18,618.93x = 25,693.43 × 10,655.51
  4. Step 4: Simplify right side
    18,618.93x = 273,776,418.55
  5. Step 5: Solve for x
    x = 273,776,418.55/18,618.93
  6. Step 6: Final answer
    x = 14,704.20

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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.