Home / 13,698.86-18,904.45-7,411.23

Finding the Fourth Proportional to 13,698.86, 18,904.45 and 7,411.23

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Solution

The fourth proportional to 13,698.86, 18,904.45 and 7,411.23 is: 10,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.86 : 18,904.45 = 7,411.23 : x
  2. Step 2: Convert to fraction form
    13,698.86/18,904.45 = 7,411.23/x
  3. Step 3: Cross multiply
    13,698.86x = 18,904.45 × 7,411.23
  4. Step 4: Simplify right side
    13,698.86x = 140,105,226.97
  5. Step 5: Solve for x
    x = 140,105,226.97/13,698.86
  6. Step 6: Final answer
    x = 10,227.51

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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.