Home / 7,914.76-11,864.39-6,437.00

Finding the Fourth Proportional to 7,914.76, 11,864.39 and 6,437.00

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Solution

The fourth proportional to 7,914.76, 11,864.39 and 6,437.00 is: 9,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.76 : 11,864.39 = 6,437.00 : x
  2. Step 2: Convert to fraction form
    7,914.76/11,864.39 = 6,437.00/x
  3. Step 3: Cross multiply
    7,914.76x = 11,864.39 × 6,437.00
  4. Step 4: Simplify right side
    7,914.76x = 76,371,075.91
  5. Step 5: Solve for x
    x = 76,371,075.91/7,914.76
  6. Step 6: Final answer
    x = 9,649.20

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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.