Home / 13,971.29-19,278.81-8,001.32

Finding the Fourth Proportional to 13,971.29, 19,278.81 and 8,001.32

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Solution

The fourth proportional to 13,971.29, 19,278.81 and 8,001.32 is: 11,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.29 : 19,278.81 = 8,001.32 : x
  2. Step 2: Convert to fraction form
    13,971.29/19,278.81 = 8,001.32/x
  3. Step 3: Cross multiply
    13,971.29x = 19,278.81 × 8,001.32
  4. Step 4: Simplify right side
    13,971.29x = 154,255,831.64
  5. Step 5: Solve for x
    x = 154,255,831.64/13,971.29
  6. Step 6: Final answer
    x = 11,040.92

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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.