Home / 11,478.24-15,838.20-6,698.16

Finding the Fourth Proportional to 11,478.24, 15,838.20 and 6,698.16

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Solution

The fourth proportional to 11,478.24, 15,838.20 and 6,698.16 is: 9,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.24 : 15,838.20 = 6,698.16 : x
  2. Step 2: Convert to fraction form
    11,478.24/15,838.20 = 6,698.16/x
  3. Step 3: Cross multiply
    11,478.24x = 15,838.20 × 6,698.16
  4. Step 4: Simplify right side
    11,478.24x = 106,086,797.71
  5. Step 5: Solve for x
    x = 106,086,797.71/11,478.24
  6. Step 6: Final answer
    x = 9,242.43

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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.