Home / 10,470.36-15,718.88-6,788.00

Finding the Fourth Proportional to 10,470.36, 15,718.88 and 6,788.00

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Solution

The fourth proportional to 10,470.36, 15,718.88 and 6,788.00 is: 10,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.36 : 15,718.88 = 6,788.00 : x
  2. Step 2: Convert to fraction form
    10,470.36/15,718.88 = 6,788.00/x
  3. Step 3: Cross multiply
    10,470.36x = 15,718.88 × 6,788.00
  4. Step 4: Simplify right side
    10,470.36x = 106,699,644.91
  5. Step 5: Solve for x
    x = 106,699,644.91/10,470.36
  6. Step 6: Final answer
    x = 10,190.64

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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.