Home / 8,827.16-13,288.84-7,621.88

Finding the Fourth Proportional to 8,827.16, 13,288.84 and 7,621.88

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Solution

The fourth proportional to 8,827.16, 13,288.84 and 7,621.88 is: 11,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.16 : 13,288.84 = 7,621.88 : x
  2. Step 2: Convert to fraction form
    8,827.16/13,288.84 = 7,621.88/x
  3. Step 3: Cross multiply
    8,827.16x = 13,288.84 × 7,621.88
  4. Step 4: Simplify right side
    8,827.16x = 101,285,957.99
  5. Step 5: Solve for x
    x = 101,285,957.99/8,827.16
  6. Step 6: Final answer
    x = 11,474.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.