Home / 7,838.18-10,816.48-4,388.72

Finding the Fourth Proportional to 7,838.18, 10,816.48 and 4,388.72

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Solution

The fourth proportional to 7,838.18, 10,816.48 and 4,388.72 is: 6,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.18 : 10,816.48 = 4,388.72 : x
  2. Step 2: Convert to fraction form
    7,838.18/10,816.48 = 4,388.72/x
  3. Step 3: Cross multiply
    7,838.18x = 10,816.48 × 4,388.72
  4. Step 4: Simplify right side
    7,838.18x = 47,470,502.11
  5. Step 5: Solve for x
    x = 47,470,502.11/7,838.18
  6. Step 6: Final answer
    x = 6,056.32

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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.