Home / 15,816.32-21,826.52-9,529.91

Finding the Fourth Proportional to 15,816.32, 21,826.52 and 9,529.91

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Solution

The fourth proportional to 15,816.32, 21,826.52 and 9,529.91 is: 13,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.32 : 21,826.52 = 9,529.91 : x
  2. Step 2: Convert to fraction form
    15,816.32/21,826.52 = 9,529.91/x
  3. Step 3: Cross multiply
    15,816.32x = 21,826.52 × 9,529.91
  4. Step 4: Simplify right side
    15,816.32x = 208,004,723.56
  5. Step 5: Solve for x
    x = 208,004,723.56/15,816.32
  6. Step 6: Final answer
    x = 13,151.27

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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.