Home / 14,141.79-21,212.69-4,281.05

Finding the Fourth Proportional to 14,141.79, 21,212.69 and 4,281.05

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Solution

The fourth proportional to 14,141.79, 21,212.69 and 4,281.05 is: 6,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.79 : 21,212.69 = 4,281.05 : x
  2. Step 2: Convert to fraction form
    14,141.79/21,212.69 = 4,281.05/x
  3. Step 3: Cross multiply
    14,141.79x = 21,212.69 × 4,281.05
  4. Step 4: Simplify right side
    14,141.79x = 90,812,618.15
  5. Step 5: Solve for x
    x = 90,812,618.15/14,141.79
  6. Step 6: Final answer
    x = 6,421.58

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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.