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Finding the Fourth Proportional to 8,898.37, 12,264.59 and 8,144.22

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Solution

The fourth proportional to 8,898.37, 12,264.59 and 8,144.22 is: 11,225.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.37 : 12,264.59 = 8,144.22 : x
  2. Step 2: Convert to fraction form
    8,898.37/12,264.59 = 8,144.22/x
  3. Step 3: Cross multiply
    8,898.37x = 12,264.59 × 8,144.22
  4. Step 4: Simplify right side
    8,898.37x = 99,885,509.11
  5. Step 5: Solve for x
    x = 99,885,509.11/8,898.37
  6. Step 6: Final answer
    x = 11,225.15

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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.