Home / 17,381.61-26,072.37-12,210.57

Finding the Fourth Proportional to 17,381.61, 26,072.37 and 12,210.57

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Solution

The fourth proportional to 17,381.61, 26,072.37 and 12,210.57 is: 18,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381.61 : 26,072.37 = 12,210.57 : x
  2. Step 2: Convert to fraction form
    17,381.61/26,072.37 = 12,210.57/x
  3. Step 3: Cross multiply
    17,381.61x = 26,072.37 × 12,210.57
  4. Step 4: Simplify right side
    17,381.61x = 318,358,498.95
  5. Step 5: Solve for x
    x = 318,358,498.95/17,381.61
  6. Step 6: Final answer
    x = 18,315.82

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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.