Home / 7,488.99-10,325.21-6,139.71

Finding the Fourth Proportional to 7,488.99, 10,325.21 and 6,139.71

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Solution

The fourth proportional to 7,488.99, 10,325.21 and 6,139.71 is: 8,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.99 : 10,325.21 = 6,139.71 : x
  2. Step 2: Convert to fraction form
    7,488.99/10,325.21 = 6,139.71/x
  3. Step 3: Cross multiply
    7,488.99x = 10,325.21 × 6,139.71
  4. Step 4: Simplify right side
    7,488.99x = 63,393,798.93
  5. Step 5: Solve for x
    x = 63,393,798.93/7,488.99
  6. Step 6: Final answer
    x = 8,464.93

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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.