Home / 15,816.07-21,826.17-9,529.66

Finding the Fourth Proportional to 15,816.07, 21,826.17 and 9,529.66

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Solution

The fourth proportional to 15,816.07, 21,826.17 and 9,529.66 is: 13,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.07 : 21,826.17 = 9,529.66 : x
  2. Step 2: Convert to fraction form
    15,816.07/21,826.17 = 9,529.66/x
  3. Step 3: Cross multiply
    15,816.07x = 21,826.17 × 9,529.66
  4. Step 4: Simplify right side
    15,816.07x = 207,995,979.20
  5. Step 5: Solve for x
    x = 207,995,979.20/15,816.07
  6. Step 6: Final answer
    x = 13,150.93

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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.