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Finding the Fourth Proportional to 19,068, 26,313.84 and 10,687.20

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Solution

The fourth proportional to 19,068, 26,313.84 and 10,687.20 is: 14,748.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068 : 26,313.84 = 10,687.20 : x
  2. Step 2: Convert to fraction form
    19,068/26,313.84 = 10,687.20/x
  3. Step 3: Cross multiply
    19,068x = 26,313.84 × 10,687.20
  4. Step 4: Simplify right side
    19,068x = 281,221,270.85
  5. Step 5: Solve for x
    x = 281,221,270.85/19,068
  6. Step 6: Final answer
    x = 14,748.34

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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.