Home / 18,756.32-25,888.84-11,678.56

Finding the Fourth Proportional to 18,756.32, 25,888.84 and 11,678.56

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Solution

The fourth proportional to 18,756.32, 25,888.84 and 11,678.56 is: 16,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.32 : 25,888.84 = 11,678.56 : x
  2. Step 2: Convert to fraction form
    18,756.32/25,888.84 = 11,678.56/x
  3. Step 3: Cross multiply
    18,756.32x = 25,888.84 × 11,678.56
  4. Step 4: Simplify right side
    18,756.32x = 302,344,371.27
  5. Step 5: Solve for x
    x = 302,344,371.27/18,756.32
  6. Step 6: Final answer
    x = 16,119.60

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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.