Home / 7,359.10-11,018.41-5,140.15

Finding the Fourth Proportional to 7,359.10, 11,018.41 and 5,140.15

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Solution

The fourth proportional to 7,359.10, 11,018.41 and 5,140.15 is: 7,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,359.10 : 11,018.41 = 5,140.15 : x
  2. Step 2: Convert to fraction form
    7,359.10/11,018.41 = 5,140.15/x
  3. Step 3: Cross multiply
    7,359.10x = 11,018.41 × 5,140.15
  4. Step 4: Simplify right side
    7,359.10x = 56,636,239.77
  5. Step 5: Solve for x
    x = 56,636,239.77/7,359.10
  6. Step 6: Final answer
    x = 7,696.08

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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.