Home / 10,320.59-14,228.79-8,408.99

Finding the Fourth Proportional to 10,320.59, 14,228.79 and 8,408.99

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Solution

The fourth proportional to 10,320.59, 14,228.79 and 8,408.99 is: 11,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.59 : 14,228.79 = 8,408.99 : x
  2. Step 2: Convert to fraction form
    10,320.59/14,228.79 = 8,408.99/x
  3. Step 3: Cross multiply
    10,320.59x = 14,228.79 × 8,408.99
  4. Step 4: Simplify right side
    10,320.59x = 119,649,752.82
  5. Step 5: Solve for x
    x = 119,649,752.82/10,320.59
  6. Step 6: Final answer
    x = 11,593.31

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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.