Home / 7,530.05-10,400.19-5,007.79

Finding the Fourth Proportional to 7,530.05, 10,400.19 and 5,007.79

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Solution

The fourth proportional to 7,530.05, 10,400.19 and 5,007.79 is: 6,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.05 : 10,400.19 = 5,007.79 : x
  2. Step 2: Convert to fraction form
    7,530.05/10,400.19 = 5,007.79/x
  3. Step 3: Cross multiply
    7,530.05x = 10,400.19 × 5,007.79
  4. Step 4: Simplify right side
    7,530.05x = 52,081,941.48
  5. Step 5: Solve for x
    x = 52,081,941.48/7,530.05
  6. Step 6: Final answer
    x = 6,916.54

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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.