Home / 15,051.02-20,780.55-9,394.38

Finding the Fourth Proportional to 15,051.02, 20,780.55 and 9,394.38

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Solution

The fourth proportional to 15,051.02, 20,780.55 and 9,394.38 is: 12,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.02 : 20,780.55 = 9,394.38 : x
  2. Step 2: Convert to fraction form
    15,051.02/20,780.55 = 9,394.38/x
  3. Step 3: Cross multiply
    15,051.02x = 20,780.55 × 9,394.38
  4. Step 4: Simplify right side
    15,051.02x = 195,220,383.31
  5. Step 5: Solve for x
    x = 195,220,383.31/15,051.02
  6. Step 6: Final answer
    x = 12,970.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.