Home / 11,865.40-16,374.59-6,560.56

Finding the Fourth Proportional to 11,865.40, 16,374.59 and 6,560.56

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Solution

The fourth proportional to 11,865.40, 16,374.59 and 6,560.56 is: 9,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.40 : 16,374.59 = 6,560.56 : x
  2. Step 2: Convert to fraction form
    11,865.40/16,374.59 = 6,560.56/x
  3. Step 3: Cross multiply
    11,865.40x = 16,374.59 × 6,560.56
  4. Step 4: Simplify right side
    11,865.40x = 107,426,398.30
  5. Step 5: Solve for x
    x = 107,426,398.30/11,865.40
  6. Step 6: Final answer
    x = 9,053.75

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1.5x scale

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.