Home / 13,493.31-18,623.01-7,831.41

Finding the Fourth Proportional to 13,493.31, 18,623.01 and 7,831.41

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Solution

The fourth proportional to 13,493.31, 18,623.01 and 7,831.41 is: 10,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.31 : 18,623.01 = 7,831.41 : x
  2. Step 2: Convert to fraction form
    13,493.31/18,623.01 = 7,831.41/x
  3. Step 3: Cross multiply
    13,493.31x = 18,623.01 × 7,831.41
  4. Step 4: Simplify right side
    13,493.31x = 145,844,426.74
  5. Step 5: Solve for x
    x = 145,844,426.74/13,493.31
  6. Step 6: Final answer
    x = 10,808.65

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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.