Home / 10,887.63-16,331.55-4,309.19

Finding the Fourth Proportional to 10,887.63, 16,331.55 and 4,309.19

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Solution

The fourth proportional to 10,887.63, 16,331.55 and 4,309.19 is: 6,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.63 : 16,331.55 = 4,309.19 : x
  2. Step 2: Convert to fraction form
    10,887.63/16,331.55 = 4,309.19/x
  3. Step 3: Cross multiply
    10,887.63x = 16,331.55 × 4,309.19
  4. Step 4: Simplify right side
    10,887.63x = 70,375,670.29
  5. Step 5: Solve for x
    x = 70,375,670.29/10,887.63
  6. Step 6: Final answer
    x = 6,463.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.