Home / 15,532.96-21,434.72-8,459.44

Finding the Fourth Proportional to 15,532.96, 21,434.72 and 8,459.44

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Solution

The fourth proportional to 15,532.96, 21,434.72 and 8,459.44 is: 11,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.96 : 21,434.72 = 8,459.44 : x
  2. Step 2: Convert to fraction form
    15,532.96/21,434.72 = 8,459.44/x
  3. Step 3: Cross multiply
    15,532.96x = 21,434.72 × 8,459.44
  4. Step 4: Simplify right side
    15,532.96x = 181,325,727.76
  5. Step 5: Solve for x
    x = 181,325,727.76/15,532.96
  6. Step 6: Final answer
    x = 11,673.61

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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.