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Finding the Fourth Proportional to 16,312.51, 22,511.28 and 8,860.51

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Solution

The fourth proportional to 16,312.51, 22,511.28 and 8,860.51 is: 12,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,312.51 : 22,511.28 = 8,860.51 : x
  2. Step 2: Convert to fraction form
    16,312.51/22,511.28 = 8,860.51/x
  3. Step 3: Cross multiply
    16,312.51x = 22,511.28 × 8,860.51
  4. Step 4: Simplify right side
    16,312.51x = 199,461,421.55
  5. Step 5: Solve for x
    x = 199,461,421.55/16,312.51
  6. Step 6: Final answer
    x = 12,227.51

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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.