Home / 13,831.48-19,065.13-9,353.60

Finding the Fourth Proportional to 13,831.48, 19,065.13 and 9,353.60

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Solution

The fourth proportional to 13,831.48, 19,065.13 and 9,353.60 is: 12,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.48 : 19,065.13 = 9,353.60 : x
  2. Step 2: Convert to fraction form
    13,831.48/19,065.13 = 9,353.60/x
  3. Step 3: Cross multiply
    13,831.48x = 19,065.13 × 9,353.60
  4. Step 4: Simplify right side
    13,831.48x = 178,327,599.97
  5. Step 5: Solve for x
    x = 178,327,599.97/13,831.48
  6. Step 6: Final answer
    x = 12,892.88

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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.