Home / 15,111.40-22,656.30-6,784.60

Finding the Fourth Proportional to 15,111.40, 22,656.30 and 6,784.60

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Solution

The fourth proportional to 15,111.40, 22,656.30 and 6,784.60 is: 10,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.40 : 22,656.30 = 6,784.60 : x
  2. Step 2: Convert to fraction form
    15,111.40/22,656.30 = 6,784.60/x
  3. Step 3: Cross multiply
    15,111.40x = 22,656.30 × 6,784.60
  4. Step 4: Simplify right side
    15,111.40x = 153,713,932.98
  5. Step 5: Solve for x
    x = 153,713,932.98/15,111.40
  6. Step 6: Final answer
    x = 10,172.05

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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.