Home / 13,335.20-18,402.54-7,671.04

Finding the Fourth Proportional to 13,335.20, 18,402.54 and 7,671.04

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Solution

The fourth proportional to 13,335.20, 18,402.54 and 7,671.04 is: 10,586.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.20 : 18,402.54 = 7,671.04 : x
  2. Step 2: Convert to fraction form
    13,335.20/18,402.54 = 7,671.04/x
  3. Step 3: Cross multiply
    13,335.20x = 18,402.54 × 7,671.04
  4. Step 4: Simplify right side
    13,335.20x = 141,166,545.67
  5. Step 5: Solve for x
    x = 141,166,545.67/13,335.20
  6. Step 6: Final answer
    x = 10,586.01

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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.