Home / 14,215.40-21,323.10-11,277.80

Finding the Fourth Proportional to 14,215.40, 21,323.10 and 11,277.80

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Solution

The fourth proportional to 14,215.40, 21,323.10 and 11,277.80 is: 16,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.40 : 21,323.10 = 11,277.80 : x
  2. Step 2: Convert to fraction form
    14,215.40/21,323.10 = 11,277.80/x
  3. Step 3: Cross multiply
    14,215.40x = 21,323.10 × 11,277.80
  4. Step 4: Simplify right side
    14,215.40x = 240,477,657.18
  5. Step 5: Solve for x
    x = 240,477,657.18/14,215.40
  6. Step 6: Final answer
    x = 16,916.70

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Similar ratio
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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.