Home / 15,677.65-21,635.07-8,603.92

Finding the Fourth Proportional to 15,677.65, 21,635.07 and 8,603.92

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Solution

The fourth proportional to 15,677.65, 21,635.07 and 8,603.92 is: 11,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.65 : 21,635.07 = 8,603.92 : x
  2. Step 2: Convert to fraction form
    15,677.65/21,635.07 = 8,603.92/x
  3. Step 3: Cross multiply
    15,677.65x = 21,635.07 × 8,603.92
  4. Step 4: Simplify right side
    15,677.65x = 186,146,411.47
  5. Step 5: Solve for x
    x = 186,146,411.47/15,677.65
  6. Step 6: Final answer
    x = 11,873.36

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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.