Home / 10,678.73-16,018.09-5,130.77

Finding the Fourth Proportional to 10,678.73, 16,018.09 and 5,130.77

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Solution

The fourth proportional to 10,678.73, 16,018.09 and 5,130.77 is: 7,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.73 : 16,018.09 = 5,130.77 : x
  2. Step 2: Convert to fraction form
    10,678.73/16,018.09 = 5,130.77/x
  3. Step 3: Cross multiply
    10,678.73x = 16,018.09 × 5,130.77
  4. Step 4: Simplify right side
    10,678.73x = 82,185,042.71
  5. Step 5: Solve for x
    x = 82,185,042.71/10,678.73
  6. Step 6: Final answer
    x = 7,696.15

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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.