Home / 12,668.40-17,484.55-7,366.30

Finding the Fourth Proportional to 12,668.40, 17,484.55 and 7,366.30

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Solution

The fourth proportional to 12,668.40, 17,484.55 and 7,366.30 is: 10,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.40 : 17,484.55 = 7,366.30 : x
  2. Step 2: Convert to fraction form
    12,668.40/17,484.55 = 7,366.30/x
  3. Step 3: Cross multiply
    12,668.40x = 17,484.55 × 7,366.30
  4. Step 4: Simplify right side
    12,668.40x = 128,796,378.54
  5. Step 5: Solve for x
    x = 128,796,378.54/12,668.40
  6. Step 6: Final answer
    x = 10,166.74

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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.