Home / 13,956.90-19,260.12-7,988.37

Finding the Fourth Proportional to 13,956.90, 19,260.12 and 7,988.37

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Solution

The fourth proportional to 13,956.90, 19,260.12 and 7,988.37 is: 11,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.90 : 19,260.12 = 7,988.37 : x
  2. Step 2: Convert to fraction form
    13,956.90/19,260.12 = 7,988.37/x
  3. Step 3: Cross multiply
    13,956.90x = 19,260.12 × 7,988.37
  4. Step 4: Simplify right side
    13,956.90x = 153,856,964.80
  5. Step 5: Solve for x
    x = 153,856,964.80/13,956.90
  6. Step 6: Final answer
    x = 11,023.72

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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.