Home / 14,119.19-19,485.12-7,831.56

Finding the Fourth Proportional to 14,119.19, 19,485.12 and 7,831.56

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Solution

The fourth proportional to 14,119.19, 19,485.12 and 7,831.56 is: 10,807.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.19 : 19,485.12 = 7,831.56 : x
  2. Step 2: Convert to fraction form
    14,119.19/19,485.12 = 7,831.56/x
  3. Step 3: Cross multiply
    14,119.19x = 19,485.12 × 7,831.56
  4. Step 4: Simplify right side
    14,119.19x = 152,598,886.39
  5. Step 5: Solve for x
    x = 152,598,886.39/14,119.19
  6. Step 6: Final answer
    x = 10,807.91

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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.