Home / 15,491.04-21,382.32-10,525.92

Finding the Fourth Proportional to 15,491.04, 21,382.32 and 10,525.92

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Solution

The fourth proportional to 15,491.04, 21,382.32 and 10,525.92 is: 14,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.04 : 21,382.32 = 10,525.92 : x
  2. Step 2: Convert to fraction form
    15,491.04/21,382.32 = 10,525.92/x
  3. Step 3: Cross multiply
    15,491.04x = 21,382.32 × 10,525.92
  4. Step 4: Simplify right side
    15,491.04x = 225,068,589.73
  5. Step 5: Solve for x
    x = 225,068,589.73/15,491.04
  6. Step 6: Final answer
    x = 14,528.95

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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.