Home / 9,328.62-12,851.59-6,491.12

Finding the Fourth Proportional to 9,328.62, 12,851.59 and 6,491.12

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Solution

The fourth proportional to 9,328.62, 12,851.59 and 6,491.12 is: 8,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.62 : 12,851.59 = 6,491.12 : x
  2. Step 2: Convert to fraction form
    9,328.62/12,851.59 = 6,491.12/x
  3. Step 3: Cross multiply
    9,328.62x = 12,851.59 × 6,491.12
  4. Step 4: Simplify right side
    9,328.62x = 83,421,204.93
  5. Step 5: Solve for x
    x = 83,421,204.93/9,328.62
  6. Step 6: Final answer
    x = 8,942.50

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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.