Home / 15,341.10-21,182.67-12,371.10

Finding the Fourth Proportional to 15,341.10, 21,182.67 and 12,371.10

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Solution

The fourth proportional to 15,341.10, 21,182.67 and 12,371.10 is: 17,081.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.10 : 21,182.67 = 12,371.10 : x
  2. Step 2: Convert to fraction form
    15,341.10/21,182.67 = 12,371.10/x
  3. Step 3: Cross multiply
    15,341.10x = 21,182.67 × 12,371.10
  4. Step 4: Simplify right side
    15,341.10x = 262,052,928.84
  5. Step 5: Solve for x
    x = 262,052,928.84/15,341.10
  6. Step 6: Final answer
    x = 17,081.76

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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.