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Finding the Fourth Proportional to 18,271.30, 27,415.40 and 9,941.39

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Solution

The fourth proportional to 18,271.30, 27,415.40 and 9,941.39 is: 14,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.30 : 27,415.40 = 9,941.39 : x
  2. Step 2: Convert to fraction form
    18,271.30/27,415.40 = 9,941.39/x
  3. Step 3: Cross multiply
    18,271.30x = 27,415.40 × 9,941.39
  4. Step 4: Simplify right side
    18,271.30x = 272,547,183.41
  5. Step 5: Solve for x
    x = 272,547,183.41/18,271.30
  6. Step 6: Final answer
    x = 14,916.69

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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.