Home / 7,624.11-10,521.39-4,640.07

Finding the Fourth Proportional to 7,624.11, 10,521.39 and 4,640.07

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Solution

The fourth proportional to 7,624.11, 10,521.39 and 4,640.07 is: 6,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624.11 : 10,521.39 = 4,640.07 : x
  2. Step 2: Convert to fraction form
    7,624.11/10,521.39 = 4,640.07/x
  3. Step 3: Cross multiply
    7,624.11x = 10,521.39 × 4,640.07
  4. Step 4: Simplify right side
    7,624.11x = 48,819,986.10
  5. Step 5: Solve for x
    x = 48,819,986.10/7,624.11
  6. Step 6: Final answer
    x = 6,403.37

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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.