Home / 18,818.36-25,971.96-10,860.44

Finding the Fourth Proportional to 18,818.36, 25,971.96 and 10,860.44

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Solution

The fourth proportional to 18,818.36, 25,971.96 and 10,860.44 is: 14,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.36 : 25,971.96 = 10,860.44 : x
  2. Step 2: Convert to fraction form
    18,818.36/25,971.96 = 10,860.44/x
  3. Step 3: Cross multiply
    18,818.36x = 25,971.96 × 10,860.44
  4. Step 4: Simplify right side
    18,818.36x = 282,066,913.26
  5. Step 5: Solve for x
    x = 282,066,913.26/18,818.36
  6. Step 6: Final answer
    x = 14,988.92

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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.