Home / 13,958.44-19,261.53-7,988.74

Finding the Fourth Proportional to 13,958.44, 19,261.53 and 7,988.74

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Solution

The fourth proportional to 13,958.44, 19,261.53 and 7,988.74 is: 11,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.44 : 19,261.53 = 7,988.74 : x
  2. Step 2: Convert to fraction form
    13,958.44/19,261.53 = 7,988.74/x
  3. Step 3: Cross multiply
    13,958.44x = 19,261.53 × 7,988.74
  4. Step 4: Simplify right side
    13,958.44x = 153,875,355.17
  5. Step 5: Solve for x
    x = 153,875,355.17/13,958.44
  6. Step 6: Final answer
    x = 11,023.82

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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.