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Finding the Fourth Proportional to 10,689.71, 16,034.56 and 2,898.32

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Solution

The fourth proportional to 10,689.71, 16,034.56 and 2,898.32 is: 4,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.71 : 16,034.56 = 2,898.32 : x
  2. Step 2: Convert to fraction form
    10,689.71/16,034.56 = 2,898.32/x
  3. Step 3: Cross multiply
    10,689.71x = 16,034.56 × 2,898.32
  4. Step 4: Simplify right side
    10,689.71x = 46,473,198.52
  5. Step 5: Solve for x
    x = 46,473,198.52/10,689.71
  6. Step 6: Final answer
    x = 4,347.47

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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.