Home / 13,218.84-19,831.56-9,330.84

Finding the Fourth Proportional to 13,218.84, 19,831.56 and 9,330.84

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Solution

The fourth proportional to 13,218.84, 19,831.56 and 9,330.84 is: 13,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.84 : 19,831.56 = 9,330.84 : x
  2. Step 2: Convert to fraction form
    13,218.84/19,831.56 = 9,330.84/x
  3. Step 3: Cross multiply
    13,218.84x = 19,831.56 × 9,330.84
  4. Step 4: Simplify right side
    13,218.84x = 185,045,113.31
  5. Step 5: Solve for x
    x = 185,045,113.31/13,218.84
  6. Step 6: Final answer
    x = 13,998.59

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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.