Home / 14,775.14-20,393.57-8,405.46

Finding the Fourth Proportional to 14,775.14, 20,393.57 and 8,405.46

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Solution

The fourth proportional to 14,775.14, 20,393.57 and 8,405.46 is: 11,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.14 : 20,393.57 = 8,405.46 : x
  2. Step 2: Convert to fraction form
    14,775.14/20,393.57 = 8,405.46/x
  3. Step 3: Cross multiply
    14,775.14x = 20,393.57 × 8,405.46
  4. Step 4: Simplify right side
    14,775.14x = 171,417,357.91
  5. Step 5: Solve for x
    x = 171,417,357.91/14,775.14
  6. Step 6: Final answer
    x = 11,601.74

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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.