Home / 9,145.28-12,620.49-4,953.50

Finding the Fourth Proportional to 9,145.28, 12,620.49 and 4,953.50

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Solution

The fourth proportional to 9,145.28, 12,620.49 and 4,953.50 is: 6,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.28 : 12,620.49 = 4,953.50 : x
  2. Step 2: Convert to fraction form
    9,145.28/12,620.49 = 4,953.50/x
  3. Step 3: Cross multiply
    9,145.28x = 12,620.49 × 4,953.50
  4. Step 4: Simplify right side
    9,145.28x = 62,515,597.22
  5. Step 5: Solve for x
    x = 62,515,597.22/9,145.28
  6. Step 6: Final answer
    x = 6,835.83

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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.