Home / 9,145.17-12,620.34-4,953.42

Finding the Fourth Proportional to 9,145.17, 12,620.34 and 4,953.42

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Solution

The fourth proportional to 9,145.17, 12,620.34 and 4,953.42 is: 6,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.17 : 12,620.34 = 4,953.42 : x
  2. Step 2: Convert to fraction form
    9,145.17/12,620.34 = 4,953.42/x
  3. Step 3: Cross multiply
    9,145.17x = 12,620.34 × 4,953.42
  4. Step 4: Simplify right side
    9,145.17x = 62,513,844.56
  5. Step 5: Solve for x
    x = 62,513,844.56/9,145.17
  6. Step 6: Final answer
    x = 6,835.72

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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.