Home / 15,706.28-21,673.86-8,632.95

Finding the Fourth Proportional to 15,706.28, 21,673.86 and 8,632.95

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Solution

The fourth proportional to 15,706.28, 21,673.86 and 8,632.95 is: 11,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.28 : 21,673.86 = 8,632.95 : x
  2. Step 2: Convert to fraction form
    15,706.28/21,673.86 = 8,632.95/x
  3. Step 3: Cross multiply
    15,706.28x = 21,673.86 × 8,632.95
  4. Step 4: Simplify right side
    15,706.28x = 187,109,349.69
  5. Step 5: Solve for x
    x = 187,109,349.69/15,706.28
  6. Step 6: Final answer
    x = 11,913.03

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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.