Home / 13,956.46-19,260.78-7,988.00

Finding the Fourth Proportional to 13,956.46, 19,260.78 and 7,988.00

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Solution

The fourth proportional to 13,956.46, 19,260.78 and 7,988.00 is: 11,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.46 : 19,260.78 = 7,988.00 : x
  2. Step 2: Convert to fraction form
    13,956.46/19,260.78 = 7,988.00/x
  3. Step 3: Cross multiply
    13,956.46x = 19,260.78 × 7,988.00
  4. Step 4: Simplify right side
    13,956.46x = 153,855,125.76
  5. Step 5: Solve for x
    x = 153,855,125.76/13,956.46
  6. Step 6: Final answer
    x = 11,023.94

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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.