Home / 9,339.32-12,889.68-5,307.32

Finding the Fourth Proportional to 9,339.32, 12,889.68 and 5,307.32

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Solution

The fourth proportional to 9,339.32, 12,889.68 and 5,307.32 is: 7,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.32 : 12,889.68 = 5,307.32 : x
  2. Step 2: Convert to fraction form
    9,339.32/12,889.68 = 5,307.32/x
  3. Step 3: Cross multiply
    9,339.32x = 12,889.68 × 5,307.32
  4. Step 4: Simplify right side
    9,339.32x = 68,409,656.46
  5. Step 5: Solve for x
    x = 68,409,656.46/9,339.32
  6. Step 6: Final answer
    x = 7,324.91

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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.