Home / 15,706.03-21,674.78-8,632.91

Finding the Fourth Proportional to 15,706.03, 21,674.78 and 8,632.91

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Solution

The fourth proportional to 15,706.03, 21,674.78 and 8,632.91 is: 11,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.03 : 21,674.78 = 8,632.91 : x
  2. Step 2: Convert to fraction form
    15,706.03/21,674.78 = 8,632.91/x
  3. Step 3: Cross multiply
    15,706.03x = 21,674.78 × 8,632.91
  4. Step 4: Simplify right side
    15,706.03x = 187,116,425.01
  5. Step 5: Solve for x
    x = 187,116,425.01/15,706.03
  6. Step 6: Final answer
    x = 11,913.67

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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.