Home / 7,620.48-10,516.43-5,386.30

Finding the Fourth Proportional to 7,620.48, 10,516.43 and 5,386.30

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Solution

The fourth proportional to 7,620.48, 10,516.43 and 5,386.30 is: 7,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.48 : 10,516.43 = 5,386.30 : x
  2. Step 2: Convert to fraction form
    7,620.48/10,516.43 = 5,386.30/x
  3. Step 3: Cross multiply
    7,620.48x = 10,516.43 × 5,386.30
  4. Step 4: Simplify right side
    7,620.48x = 56,644,634.08
  5. Step 5: Solve for x
    x = 56,644,634.08/7,620.48
  6. Step 6: Final answer
    x = 7,433.21

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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.