Home / 15,222.04-21,006.35-8,507.67

Finding the Fourth Proportional to 15,222.04, 21,006.35 and 8,507.67

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Solution

The fourth proportional to 15,222.04, 21,006.35 and 8,507.67 is: 11,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.04 : 21,006.35 = 8,507.67 : x
  2. Step 2: Convert to fraction form
    15,222.04/21,006.35 = 8,507.67/x
  3. Step 3: Cross multiply
    15,222.04x = 21,006.35 × 8,507.67
  4. Step 4: Simplify right side
    15,222.04x = 178,715,093.70
  5. Step 5: Solve for x
    x = 178,715,093.70/15,222.04
  6. Step 6: Final answer
    x = 11,740.55

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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.