Home / 13,995.40-19,317.61-9,218.83

Finding the Fourth Proportional to 13,995.40, 19,317.61 and 9,218.83

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Solution

The fourth proportional to 13,995.40, 19,317.61 and 9,218.83 is: 12,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.40 : 19,317.61 = 9,218.83 : x
  2. Step 2: Convert to fraction form
    13,995.40/19,317.61 = 9,218.83/x
  3. Step 3: Cross multiply
    13,995.40x = 19,317.61 × 9,218.83
  4. Step 4: Simplify right side
    13,995.40x = 178,085,762.60
  5. Step 5: Solve for x
    x = 178,085,762.60/13,995.40
  6. Step 6: Final answer
    x = 12,724.59

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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.