Home / 10,445.21-14,420.97-7,257.49

Finding the Fourth Proportional to 10,445.21, 14,420.97 and 7,257.49

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Solution

The fourth proportional to 10,445.21, 14,420.97 and 7,257.49 is: 10,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.21 : 14,420.97 = 7,257.49 : x
  2. Step 2: Convert to fraction form
    10,445.21/14,420.97 = 7,257.49/x
  3. Step 3: Cross multiply
    10,445.21x = 14,420.97 × 7,257.49
  4. Step 4: Simplify right side
    10,445.21x = 104,660,045.57
  5. Step 5: Solve for x
    x = 104,660,045.57/10,445.21
  6. Step 6: Final answer
    x = 10,019.91

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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.