Home / 18,180.16-25,089.60-10,222.72

Finding the Fourth Proportional to 18,180.16, 25,089.60 and 10,222.72

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Solution

The fourth proportional to 18,180.16, 25,089.60 and 10,222.72 is: 14,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.16 : 25,089.60 = 10,222.72 : x
  2. Step 2: Convert to fraction form
    18,180.16/25,089.60 = 10,222.72/x
  3. Step 3: Cross multiply
    18,180.16x = 25,089.60 × 10,222.72
  4. Step 4: Simplify right side
    18,180.16x = 256,483,955.71
  5. Step 5: Solve for x
    x = 256,483,955.71/18,180.16
  6. Step 6: Final answer
    x = 14,107.90

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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.