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Finding the Fourth Proportional to 14,689.40, 22,012.22 and 8,117.46

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Solution

The fourth proportional to 14,689.40, 22,012.22 and 8,117.46 is: 12,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.40 : 22,012.22 = 8,117.46 : x
  2. Step 2: Convert to fraction form
    14,689.40/22,012.22 = 8,117.46/x
  3. Step 3: Cross multiply
    14,689.40x = 22,012.22 × 8,117.46
  4. Step 4: Simplify right side
    14,689.40x = 178,683,274.77
  5. Step 5: Solve for x
    x = 178,683,274.77/14,689.40
  6. Step 6: Final answer
    x = 12,164.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.