Home / 15,551.83-21,459.90-8,744.77

Finding the Fourth Proportional to 15,551.83, 21,459.90 and 8,744.77

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Solution

The fourth proportional to 15,551.83, 21,459.90 and 8,744.77 is: 12,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.83 : 21,459.90 = 8,744.77 : x
  2. Step 2: Convert to fraction form
    15,551.83/21,459.90 = 8,744.77/x
  3. Step 3: Cross multiply
    15,551.83x = 21,459.90 × 8,744.77
  4. Step 4: Simplify right side
    15,551.83x = 187,661,889.72
  5. Step 5: Solve for x
    x = 187,661,889.72/15,551.83
  6. Step 6: Final answer
    x = 12,066.87

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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.