Home / 13,056.14-18,017.36-7,087.79

Finding the Fourth Proportional to 13,056.14, 18,017.36 and 7,087.79

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Solution

The fourth proportional to 13,056.14, 18,017.36 and 7,087.79 is: 9,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.14 : 18,017.36 = 7,087.79 : x
  2. Step 2: Convert to fraction form
    13,056.14/18,017.36 = 7,087.79/x
  3. Step 3: Cross multiply
    13,056.14x = 18,017.36 × 7,087.79
  4. Step 4: Simplify right side
    13,056.14x = 127,703,264.03
  5. Step 5: Solve for x
    x = 127,703,264.03/13,056.14
  6. Step 6: Final answer
    x = 9,781.09

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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.