Home / 13,289.15-18,323.82-9,926.30

Finding the Fourth Proportional to 13,289.15, 18,323.82 and 9,926.30

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Solution

The fourth proportional to 13,289.15, 18,323.82 and 9,926.30 is: 13,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.15 : 18,323.82 = 9,926.30 : x
  2. Step 2: Convert to fraction form
    13,289.15/18,323.82 = 9,926.30/x
  3. Step 3: Cross multiply
    13,289.15x = 18,323.82 × 9,926.30
  4. Step 4: Simplify right side
    13,289.15x = 181,887,780.28
  5. Step 5: Solve for x
    x = 181,887,780.28/13,289.15
  6. Step 6: Final answer
    x = 13,686.94

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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.