Home / 17,505.40-26,263.50-6,978.64

Finding the Fourth Proportional to 17,505.40, 26,263.50 and 6,978.64

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Solution

The fourth proportional to 17,505.40, 26,263.50 and 6,978.64 is: 10,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,505.40 : 26,263.50 = 6,978.64 : x
  2. Step 2: Convert to fraction form
    17,505.40/26,263.50 = 6,978.64/x
  3. Step 3: Cross multiply
    17,505.40x = 26,263.50 × 6,978.64
  4. Step 4: Simplify right side
    17,505.40x = 183,283,511.64
  5. Step 5: Solve for x
    x = 183,283,511.64/17,505.40
  6. Step 6: Final answer
    x = 10,470.11

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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.