Home / 14,142.61-21,212.70-4,284.10

Finding the Fourth Proportional to 14,142.61, 21,212.70 and 4,284.10

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Solution

The fourth proportional to 14,142.61, 21,212.70 and 4,284.10 is: 6,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.61 : 21,212.70 = 4,284.10 : x
  2. Step 2: Convert to fraction form
    14,142.61/21,212.70 = 4,284.10/x
  3. Step 3: Cross multiply
    14,142.61x = 21,212.70 × 4,284.10
  4. Step 4: Simplify right side
    14,142.61x = 90,877,328.07
  5. Step 5: Solve for x
    x = 90,877,328.07/14,142.61
  6. Step 6: Final answer
    x = 6,425.78

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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.