Home / 15,661.24-21,609.84-10,353.32

Finding the Fourth Proportional to 15,661.24, 21,609.84 and 10,353.32

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Solution

The fourth proportional to 15,661.24, 21,609.84 and 10,353.32 is: 14,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.24 : 21,609.84 = 10,353.32 : x
  2. Step 2: Convert to fraction form
    15,661.24/21,609.84 = 10,353.32/x
  3. Step 3: Cross multiply
    15,661.24x = 21,609.84 × 10,353.32
  4. Step 4: Simplify right side
    15,661.24x = 223,733,588.67
  5. Step 5: Solve for x
    x = 223,733,588.67/15,661.24
  6. Step 6: Final answer
    x = 14,285.82

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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.