Home / 7,391.52-11,090.64-6,424.32

Finding the Fourth Proportional to 7,391.52, 11,090.64 and 6,424.32

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Solution

The fourth proportional to 7,391.52, 11,090.64 and 6,424.32 is: 9,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.52 : 11,090.64 = 6,424.32 : x
  2. Step 2: Convert to fraction form
    7,391.52/11,090.64 = 6,424.32/x
  3. Step 3: Cross multiply
    7,391.52x = 11,090.64 × 6,424.32
  4. Step 4: Simplify right side
    7,391.52x = 71,249,820.36
  5. Step 5: Solve for x
    x = 71,249,820.36/7,391.52
  6. Step 6: Final answer
    x = 9,639.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.