Home / 10,531.66-15,807.21-5,341.18

Finding the Fourth Proportional to 10,531.66, 15,807.21 and 5,341.18

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Solution

The fourth proportional to 10,531.66, 15,807.21 and 5,341.18 is: 8,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.66 : 15,807.21 = 5,341.18 : x
  2. Step 2: Convert to fraction form
    10,531.66/15,807.21 = 5,341.18/x
  3. Step 3: Cross multiply
    10,531.66x = 15,807.21 × 5,341.18
  4. Step 4: Simplify right side
    10,531.66x = 84,429,153.91
  5. Step 5: Solve for x
    x = 84,429,153.91/10,531.66
  6. Step 6: Final answer
    x = 8,016.70

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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.