Home / 8,085.17-12,127.76-2,538.66

Finding the Fourth Proportional to 8,085.17, 12,127.76 and 2,538.66

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Solution

The fourth proportional to 8,085.17, 12,127.76 and 2,538.66 is: 3,807.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.17 : 12,127.76 = 2,538.66 : x
  2. Step 2: Convert to fraction form
    8,085.17/12,127.76 = 2,538.66/x
  3. Step 3: Cross multiply
    8,085.17x = 12,127.76 × 2,538.66
  4. Step 4: Simplify right side
    8,085.17x = 30,788,246.51
  5. Step 5: Solve for x
    x = 30,788,246.51/8,085.17
  6. Step 6: Final answer
    x = 3,807.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.