Home / 12,287.79-16,957.55-6,911.16

Finding the Fourth Proportional to 12,287.79, 16,957.55 and 6,911.16

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Solution

The fourth proportional to 12,287.79, 16,957.55 and 6,911.16 is: 9,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.79 : 16,957.55 = 6,911.16 : x
  2. Step 2: Convert to fraction form
    12,287.79/16,957.55 = 6,911.16/x
  3. Step 3: Cross multiply
    12,287.79x = 16,957.55 × 6,911.16
  4. Step 4: Simplify right side
    12,287.79x = 117,196,221.91
  5. Step 5: Solve for x
    x = 117,196,221.91/12,287.79
  6. Step 6: Final answer
    x = 9,537.62

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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.