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Finding the Fourth Proportional to 13,483.80, 18,607.41 and 7,434.24

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Solution

The fourth proportional to 13,483.80, 18,607.41 and 7,434.24 is: 10,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.80 : 18,607.41 = 7,434.24 : x
  2. Step 2: Convert to fraction form
    13,483.80/18,607.41 = 7,434.24/x
  3. Step 3: Cross multiply
    13,483.80x = 18,607.41 × 7,434.24
  4. Step 4: Simplify right side
    13,483.80x = 138,331,951.72
  5. Step 5: Solve for x
    x = 138,331,951.72/13,483.80
  6. Step 6: Final answer
    x = 10,259.12

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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.