Home / 15,434.46-21,299.54-8,360.91

Finding the Fourth Proportional to 15,434.46, 21,299.54 and 8,360.91

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Solution

The fourth proportional to 15,434.46, 21,299.54 and 8,360.91 is: 11,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.46 : 21,299.54 = 8,360.91 : x
  2. Step 2: Convert to fraction form
    15,434.46/21,299.54 = 8,360.91/x
  3. Step 3: Cross multiply
    15,434.46x = 21,299.54 × 8,360.91
  4. Step 4: Simplify right side
    15,434.46x = 178,083,495.18
  5. Step 5: Solve for x
    x = 178,083,495.18/15,434.46
  6. Step 6: Final answer
    x = 11,538.05

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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.