Home / 14,105.07-21,157.55-8,298.63

Finding the Fourth Proportional to 14,105.07, 21,157.55 and 8,298.63

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Solution

The fourth proportional to 14,105.07, 21,157.55 and 8,298.63 is: 12,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.07 : 21,157.55 = 8,298.63 : x
  2. Step 2: Convert to fraction form
    14,105.07/21,157.55 = 8,298.63/x
  3. Step 3: Cross multiply
    14,105.07x = 21,157.55 × 8,298.63
  4. Step 4: Simplify right side
    14,105.07x = 175,578,637.66
  5. Step 5: Solve for x
    x = 175,578,637.66/14,105.07
  6. Step 6: Final answer
    x = 12,447.91

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Double scale
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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.