Home / 15,805.80-23,709.96-4,712.28

Finding the Fourth Proportional to 15,805.80, 23,709.96 and 4,712.28

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Solution

The fourth proportional to 15,805.80, 23,709.96 and 4,712.28 is: 7,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.80 : 23,709.96 = 4,712.28 : x
  2. Step 2: Convert to fraction form
    15,805.80/23,709.96 = 4,712.28/x
  3. Step 3: Cross multiply
    15,805.80x = 23,709.96 × 4,712.28
  4. Step 4: Simplify right side
    15,805.80x = 111,727,970.31
  5. Step 5: Solve for x
    x = 111,727,970.31/15,805.80
  6. Step 6: Final answer
    x = 7,068.80

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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.