Home / 15,415.06-23,135.55-6,656.66

Finding the Fourth Proportional to 15,415.06, 23,135.55 and 6,656.66

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Solution

The fourth proportional to 15,415.06, 23,135.55 and 6,656.66 is: 9,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.06 : 23,135.55 = 6,656.66 : x
  2. Step 2: Convert to fraction form
    15,415.06/23,135.55 = 6,656.66/x
  3. Step 3: Cross multiply
    15,415.06x = 23,135.55 × 6,656.66
  4. Step 4: Simplify right side
    15,415.06x = 154,005,490.26
  5. Step 5: Solve for x
    x = 154,005,490.26/15,415.06
  6. Step 6: Final answer
    x = 9,990.59

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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.