Home / 9,403.18-12,976.54-5,154.64

Finding the Fourth Proportional to 9,403.18, 12,976.54 and 5,154.64

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Solution

The fourth proportional to 9,403.18, 12,976.54 and 5,154.64 is: 7,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.18 : 12,976.54 = 5,154.64 : x
  2. Step 2: Convert to fraction form
    9,403.18/12,976.54 = 5,154.64/x
  3. Step 3: Cross multiply
    9,403.18x = 12,976.54 × 5,154.64
  4. Step 4: Simplify right side
    9,403.18x = 66,889,392.15
  5. Step 5: Solve for x
    x = 66,889,392.15/9,403.18
  6. Step 6: Final answer
    x = 7,113.49

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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.