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Finding the Fourth Proportional to 15,656.94, 23,485.41 and 6,891.90

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Solution

The fourth proportional to 15,656.94, 23,485.41 and 6,891.90 is: 10,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.94 : 23,485.41 = 6,891.90 : x
  2. Step 2: Convert to fraction form
    15,656.94/23,485.41 = 6,891.90/x
  3. Step 3: Cross multiply
    15,656.94x = 23,485.41 × 6,891.90
  4. Step 4: Simplify right side
    15,656.94x = 161,859,097.18
  5. Step 5: Solve for x
    x = 161,859,097.18/15,656.94
  6. Step 6: Final answer
    x = 10,337.85

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1.5x scale

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.