Home / 13,081.70-18,052.47-7,113.32

Finding the Fourth Proportional to 13,081.70, 18,052.47 and 7,113.32

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Solution

The fourth proportional to 13,081.70, 18,052.47 and 7,113.32 is: 9,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.70 : 18,052.47 = 7,113.32 : x
  2. Step 2: Convert to fraction form
    13,081.70/18,052.47 = 7,113.32/x
  3. Step 3: Cross multiply
    13,081.70x = 18,052.47 × 7,113.32
  4. Step 4: Simplify right side
    13,081.70x = 128,412,973.33
  5. Step 5: Solve for x
    x = 128,412,973.33/13,081.70
  6. Step 6: Final answer
    x = 9,816.23

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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.