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Finding the Fourth Proportional to 16,484.78, 22,749.08 and 8,931.12

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Solution

The fourth proportional to 16,484.78, 22,749.08 and 8,931.12 is: 12,324.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,484.78 : 22,749.08 = 8,931.12 : x
  2. Step 2: Convert to fraction form
    16,484.78/22,749.08 = 8,931.12/x
  3. Step 3: Cross multiply
    16,484.78x = 22,749.08 × 8,931.12
  4. Step 4: Simplify right side
    16,484.78x = 203,174,718.71
  5. Step 5: Solve for x
    x = 203,174,718.71/16,484.78
  6. Step 6: Final answer
    x = 12,324.99

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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.