Home / 13,956.17-19,261.18-7,989.76

Finding the Fourth Proportional to 13,956.17, 19,261.18 and 7,989.76

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Solution

The fourth proportional to 13,956.17, 19,261.18 and 7,989.76 is: 11,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.17 : 19,261.18 = 7,989.76 : x
  2. Step 2: Convert to fraction form
    13,956.17/19,261.18 = 7,989.76/x
  3. Step 3: Cross multiply
    13,956.17x = 19,261.18 × 7,989.76
  4. Step 4: Simplify right side
    13,956.17x = 153,892,205.52
  5. Step 5: Solve for x
    x = 153,892,205.52/13,956.17
  6. Step 6: Final answer
    x = 11,026.82

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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.