Home / 13,831.04-19,079.37-11,426.81

Finding the Fourth Proportional to 13,831.04, 19,079.37 and 11,426.81

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Solution

The fourth proportional to 13,831.04, 19,079.37 and 11,426.81 is: 15,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.04 : 19,079.37 = 11,426.81 : x
  2. Step 2: Convert to fraction form
    13,831.04/19,079.37 = 11,426.81/x
  3. Step 3: Cross multiply
    13,831.04x = 19,079.37 × 11,426.81
  4. Step 4: Simplify right side
    13,831.04x = 218,016,240.51
  5. Step 5: Solve for x
    x = 218,016,240.51/13,831.04
  6. Step 6: Final answer
    x = 15,762.82

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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.