Home / 14,503.34-20,003.19-9,721.64

Finding the Fourth Proportional to 14,503.34, 20,003.19 and 9,721.64

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Solution

The fourth proportional to 14,503.34, 20,003.19 and 9,721.64 is: 13,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.34 : 20,003.19 = 9,721.64 : x
  2. Step 2: Convert to fraction form
    14,503.34/20,003.19 = 9,721.64/x
  3. Step 3: Cross multiply
    14,503.34x = 20,003.19 × 9,721.64
  4. Step 4: Simplify right side
    14,503.34x = 194,463,712.02
  5. Step 5: Solve for x
    x = 194,463,712.02/14,503.34
  6. Step 6: Final answer
    x = 13,408.21

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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.