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Finding the Fourth Proportional to 15,907.63, 21,953.52 and 8,834.17

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Solution

The fourth proportional to 15,907.63, 21,953.52 and 8,834.17 is: 12,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.63 : 21,953.52 = 8,834.17 : x
  2. Step 2: Convert to fraction form
    15,907.63/21,953.52 = 8,834.17/x
  3. Step 3: Cross multiply
    15,907.63x = 21,953.52 × 8,834.17
  4. Step 4: Simplify right side
    15,907.63x = 193,941,127.78
  5. Step 5: Solve for x
    x = 193,941,127.78/15,907.63
  6. Step 6: Final answer
    x = 12,191.70

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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.