Home / 14,731.48-20,330.79-8,360.15

Finding the Fourth Proportional to 14,731.48, 20,330.79 and 8,360.15

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Solution

The fourth proportional to 14,731.48, 20,330.79 and 8,360.15 is: 11,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,731.48 : 20,330.79 = 8,360.15 : x
  2. Step 2: Convert to fraction form
    14,731.48/20,330.79 = 8,360.15/x
  3. Step 3: Cross multiply
    14,731.48x = 20,330.79 × 8,360.15
  4. Step 4: Simplify right side
    14,731.48x = 169,968,454.02
  5. Step 5: Solve for x
    x = 169,968,454.02/14,731.48
  6. Step 6: Final answer
    x = 11,537.77

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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.