Home / 15,835.26-21,870.63-10,790.85

Finding the Fourth Proportional to 15,835.26, 21,870.63 and 10,790.85

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Solution

The fourth proportional to 15,835.26, 21,870.63 and 10,790.85 is: 14,903.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.26 : 21,870.63 = 10,790.85 : x
  2. Step 2: Convert to fraction form
    15,835.26/21,870.63 = 10,790.85/x
  3. Step 3: Cross multiply
    15,835.26x = 21,870.63 × 10,790.85
  4. Step 4: Simplify right side
    15,835.26x = 236,002,687.74
  5. Step 5: Solve for x
    x = 236,002,687.74/15,835.26
  6. Step 6: Final answer
    x = 14,903.62

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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.