Home / 15,856.67-21,832.41-13,461.68

Finding the Fourth Proportional to 15,856.67, 21,832.41 and 13,461.68

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Solution

The fourth proportional to 15,856.67, 21,832.41 and 13,461.68 is: 18,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.67 : 21,832.41 = 13,461.68 : x
  2. Step 2: Convert to fraction form
    15,856.67/21,832.41 = 13,461.68/x
  3. Step 3: Cross multiply
    15,856.67x = 21,832.41 × 13,461.68
  4. Step 4: Simplify right side
    15,856.67x = 293,901,022.11
  5. Step 5: Solve for x
    x = 293,901,022.11/15,856.67
  6. Step 6: Final answer
    x = 18,534.85

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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.