Home / 10,943.01-15,113.93-7,972.11

Finding the Fourth Proportional to 10,943.01, 15,113.93 and 7,972.11

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Solution

The fourth proportional to 10,943.01, 15,113.93 and 7,972.11 is: 11,010.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.01 : 15,113.93 = 7,972.11 : x
  2. Step 2: Convert to fraction form
    10,943.01/15,113.93 = 7,972.11/x
  3. Step 3: Cross multiply
    10,943.01x = 15,113.93 × 7,972.11
  4. Step 4: Simplify right side
    10,943.01x = 120,489,872.63
  5. Step 5: Solve for x
    x = 120,489,872.63/10,943.01
  6. Step 6: Final answer
    x = 11,010.67

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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.