Home / 13,864.98-19,147.65-8,831.46

Finding the Fourth Proportional to 13,864.98, 19,147.65 and 8,831.46

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Solution

The fourth proportional to 13,864.98, 19,147.65 and 8,831.46 is: 12,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.98 : 19,147.65 = 8,831.46 : x
  2. Step 2: Convert to fraction form
    13,864.98/19,147.65 = 8,831.46/x
  3. Step 3: Cross multiply
    13,864.98x = 19,147.65 × 8,831.46
  4. Step 4: Simplify right side
    13,864.98x = 169,101,705.07
  5. Step 5: Solve for x
    x = 169,101,705.07/13,864.98
  6. Step 6: Final answer
    x = 12,196.32

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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.