Home / 9,400.64-12,975.73-5,424.35

Finding the Fourth Proportional to 9,400.64, 12,975.73 and 5,424.35

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Solution

The fourth proportional to 9,400.64, 12,975.73 and 5,424.35 is: 7,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.64 : 12,975.73 = 5,424.35 : x
  2. Step 2: Convert to fraction form
    9,400.64/12,975.73 = 5,424.35/x
  3. Step 3: Cross multiply
    9,400.64x = 12,975.73 × 5,424.35
  4. Step 4: Simplify right side
    9,400.64x = 70,384,822.59
  5. Step 5: Solve for x
    x = 70,384,822.59/9,400.64
  6. Step 6: Final answer
    x = 7,487.24

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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.