Home / 9,394.20-12,966.48-5,415.72

Finding the Fourth Proportional to 9,394.20, 12,966.48 and 5,415.72

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Solution

The fourth proportional to 9,394.20, 12,966.48 and 5,415.72 is: 7,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.20 : 12,966.48 = 5,415.72 : x
  2. Step 2: Convert to fraction form
    9,394.20/12,966.48 = 5,415.72/x
  3. Step 3: Cross multiply
    9,394.20x = 12,966.48 × 5,415.72
  4. Step 4: Simplify right side
    9,394.20x = 70,222,825.07
  5. Step 5: Solve for x
    x = 70,222,825.07/9,394.20
  6. Step 6: Final answer
    x = 7,475.13

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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.