Home / 15,604.46-21,532.11-9,315.50

Finding the Fourth Proportional to 15,604.46, 21,532.11 and 9,315.50

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Solution

The fourth proportional to 15,604.46, 21,532.11 and 9,315.50 is: 12,854.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.46 : 21,532.11 = 9,315.50 : x
  2. Step 2: Convert to fraction form
    15,604.46/21,532.11 = 9,315.50/x
  3. Step 3: Cross multiply
    15,604.46x = 21,532.11 × 9,315.50
  4. Step 4: Simplify right side
    15,604.46x = 200,582,370.71
  5. Step 5: Solve for x
    x = 200,582,370.71/15,604.46
  6. Step 6: Final answer
    x = 12,854.17

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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.