Home / 15,981.24-23,975.38-4,888.78

Finding the Fourth Proportional to 15,981.24, 23,975.38 and 4,888.78

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Solution

The fourth proportional to 15,981.24, 23,975.38 and 4,888.78 is: 7,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.24 : 23,975.38 = 4,888.78 : x
  2. Step 2: Convert to fraction form
    15,981.24/23,975.38 = 4,888.78/x
  3. Step 3: Cross multiply
    15,981.24x = 23,975.38 × 4,888.78
  4. Step 4: Simplify right side
    15,981.24x = 117,210,358.24
  5. Step 5: Solve for x
    x = 117,210,358.24/15,981.24
  6. Step 6: Final answer
    x = 7,334.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.