Home / 9,364.10-12,922.47-5,115.20

Finding the Fourth Proportional to 9,364.10, 12,922.47 and 5,115.20

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Solution

The fourth proportional to 9,364.10, 12,922.47 and 5,115.20 is: 7,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.10 : 12,922.47 = 5,115.20 : x
  2. Step 2: Convert to fraction form
    9,364.10/12,922.47 = 5,115.20/x
  3. Step 3: Cross multiply
    9,364.10x = 12,922.47 × 5,115.20
  4. Step 4: Simplify right side
    9,364.10x = 66,100,953.93
  5. Step 5: Solve for x
    x = 66,100,953.93/9,364.10
  6. Step 6: Final answer
    x = 7,058.98

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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.