Home / 9,145.81-12,621.29-4,954.09

Finding the Fourth Proportional to 9,145.81, 12,621.29 and 4,954.09

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Solution

The fourth proportional to 9,145.81, 12,621.29 and 4,954.09 is: 6,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.81 : 12,621.29 = 4,954.09 : x
  2. Step 2: Convert to fraction form
    9,145.81/12,621.29 = 4,954.09/x
  3. Step 3: Cross multiply
    9,145.81x = 12,621.29 × 4,954.09
  4. Step 4: Simplify right side
    9,145.81x = 62,526,981.81
  5. Step 5: Solve for x
    x = 62,526,981.81/9,145.81
  6. Step 6: Final answer
    x = 6,836.68

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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.