Home / 15,653.20-21,589.32-9,358.96

Finding the Fourth Proportional to 15,653.20, 21,589.32 and 9,358.96

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Solution

The fourth proportional to 15,653.20, 21,589.32 and 9,358.96 is: 12,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.20 : 21,589.32 = 9,358.96 : x
  2. Step 2: Convert to fraction form
    15,653.20/21,589.32 = 9,358.96/x
  3. Step 3: Cross multiply
    15,653.20x = 21,589.32 × 9,358.96
  4. Step 4: Simplify right side
    15,653.20x = 202,053,582.31
  5. Step 5: Solve for x
    x = 202,053,582.31/15,653.20
  6. Step 6: Final answer
    x = 12,908.13

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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.