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Finding the Fourth Proportional to 14,260.50, 19,679.02 and 7,886.99

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Solution

The fourth proportional to 14,260.50, 19,679.02 and 7,886.99 is: 10,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.50 : 19,679.02 = 7,886.99 : x
  2. Step 2: Convert to fraction form
    14,260.50/19,679.02 = 7,886.99/x
  3. Step 3: Cross multiply
    14,260.50x = 19,679.02 × 7,886.99
  4. Step 4: Simplify right side
    14,260.50x = 155,208,233.95
  5. Step 5: Solve for x
    x = 155,208,233.95/14,260.50
  6. Step 6: Final answer
    x = 10,883.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.