Home / 14,117.90-21,178.81-4,760.60

Finding the Fourth Proportional to 14,117.90, 21,178.81 and 4,760.60

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Solution

The fourth proportional to 14,117.90, 21,178.81 and 4,760.60 is: 7,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.90 : 21,178.81 = 4,760.60 : x
  2. Step 2: Convert to fraction form
    14,117.90/21,178.81 = 4,760.60/x
  3. Step 3: Cross multiply
    14,117.90x = 21,178.81 × 4,760.60
  4. Step 4: Simplify right side
    14,117.90x = 100,823,842.89
  5. Step 5: Solve for x
    x = 100,823,842.89/14,117.90
  6. Step 6: Final answer
    x = 7,141.56

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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.