Home / 11,425.04-15,774.36-7,401.56

Finding the Fourth Proportional to 11,425.04, 15,774.36 and 7,401.56

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Solution

The fourth proportional to 11,425.04, 15,774.36 and 7,401.56 is: 10,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.04 : 15,774.36 = 7,401.56 : x
  2. Step 2: Convert to fraction form
    11,425.04/15,774.36 = 7,401.56/x
  3. Step 3: Cross multiply
    11,425.04x = 15,774.36 × 7,401.56
  4. Step 4: Simplify right side
    11,425.04x = 116,754,872.00
  5. Step 5: Solve for x
    x = 116,754,872.00/11,425.04
  6. Step 6: Final answer
    x = 10,219.21

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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.