Home / 7,488.21-10,345.01-6,380.54

Finding the Fourth Proportional to 7,488.21, 10,345.01 and 6,380.54

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Solution

The fourth proportional to 7,488.21, 10,345.01 and 6,380.54 is: 8,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.21 : 10,345.01 = 6,380.54 : x
  2. Step 2: Convert to fraction form
    7,488.21/10,345.01 = 6,380.54/x
  3. Step 3: Cross multiply
    7,488.21x = 10,345.01 × 6,380.54
  4. Step 4: Simplify right side
    7,488.21x = 66,006,666.48
  5. Step 5: Solve for x
    x = 66,006,666.48/7,488.21
  6. Step 6: Final answer
    x = 8,814.75

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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.