Home / 13,494.93-18,623.90-7,831.51

Finding the Fourth Proportional to 13,494.93, 18,623.90 and 7,831.51

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Solution

The fourth proportional to 13,494.93, 18,623.90 and 7,831.51 is: 10,808.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.93 : 18,623.90 = 7,831.51 : x
  2. Step 2: Convert to fraction form
    13,494.93/18,623.90 = 7,831.51/x
  3. Step 3: Cross multiply
    13,494.93x = 18,623.90 × 7,831.51
  4. Step 4: Simplify right side
    13,494.93x = 145,853,262.46
  5. Step 5: Solve for x
    x = 145,853,262.46/13,494.93
  6. Step 6: Final answer
    x = 10,808.01

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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.