Home / 8,215.02-11,336.76-4,678.16

Finding the Fourth Proportional to 8,215.02, 11,336.76 and 4,678.16

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Solution

The fourth proportional to 8,215.02, 11,336.76 and 4,678.16 is: 6,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.02 : 11,336.76 = 4,678.16 : x
  2. Step 2: Convert to fraction form
    8,215.02/11,336.76 = 4,678.16/x
  3. Step 3: Cross multiply
    8,215.02x = 11,336.76 × 4,678.16
  4. Step 4: Simplify right side
    8,215.02x = 53,035,120.48
  5. Step 5: Solve for x
    x = 53,035,120.48/8,215.02
  6. Step 6: Final answer
    x = 6,455.87

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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.