Home / 13,486.36-20,238.18-6,557.08

Finding the Fourth Proportional to 13,486.36, 20,238.18 and 6,557.08

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Solution

The fourth proportional to 13,486.36, 20,238.18 and 6,557.08 is: 9,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.36 : 20,238.18 = 6,557.08 : x
  2. Step 2: Convert to fraction form
    13,486.36/20,238.18 = 6,557.08/x
  3. Step 3: Cross multiply
    13,486.36x = 20,238.18 × 6,557.08
  4. Step 4: Simplify right side
    13,486.36x = 132,703,365.31
  5. Step 5: Solve for x
    x = 132,703,365.31/13,486.36
  6. Step 6: Final answer
    x = 9,839.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.