Home / 10,909.97-16,369.81-5,714.63

Finding the Fourth Proportional to 10,909.97, 16,369.81 and 5,714.63

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Solution

The fourth proportional to 10,909.97, 16,369.81 and 5,714.63 is: 8,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.97 : 16,369.81 = 5,714.63 : x
  2. Step 2: Convert to fraction form
    10,909.97/16,369.81 = 5,714.63/x
  3. Step 3: Cross multiply
    10,909.97x = 16,369.81 × 5,714.63
  4. Step 4: Simplify right side
    10,909.97x = 93,547,311.18
  5. Step 5: Solve for x
    x = 93,547,311.18/10,909.97
  6. Step 6: Final answer
    x = 8,574.48

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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.