Home / 14,219.84-21,320.63-5,905.59

Finding the Fourth Proportional to 14,219.84, 21,320.63 and 5,905.59

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Solution

The fourth proportional to 14,219.84, 21,320.63 and 5,905.59 is: 8,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.84 : 21,320.63 = 5,905.59 : x
  2. Step 2: Convert to fraction form
    14,219.84/21,320.63 = 5,905.59/x
  3. Step 3: Cross multiply
    14,219.84x = 21,320.63 × 5,905.59
  4. Step 4: Simplify right side
    14,219.84x = 125,910,869.79
  5. Step 5: Solve for x
    x = 125,910,869.79/14,219.84
  6. Step 6: Final answer
    x = 8,854.59

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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.