Home / 12,132.11-18,225.74-10,471.41

Finding the Fourth Proportional to 12,132.11, 18,225.74 and 10,471.41

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Solution

The fourth proportional to 12,132.11, 18,225.74 and 10,471.41 is: 15,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.11 : 18,225.74 = 10,471.41 : x
  2. Step 2: Convert to fraction form
    12,132.11/18,225.74 = 10,471.41/x
  3. Step 3: Cross multiply
    12,132.11x = 18,225.74 × 10,471.41
  4. Step 4: Simplify right side
    12,132.11x = 190,849,222.27
  5. Step 5: Solve for x
    x = 190,849,222.27/12,132.11
  6. Step 6: Final answer
    x = 15,730.91

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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.