Home / 13,348.64-18,421.02-7,380.19

Finding the Fourth Proportional to 13,348.64, 18,421.02 and 7,380.19

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Solution

The fourth proportional to 13,348.64, 18,421.02 and 7,380.19 is: 10,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.64 : 18,421.02 = 7,380.19 : x
  2. Step 2: Convert to fraction form
    13,348.64/18,421.02 = 7,380.19/x
  3. Step 3: Cross multiply
    13,348.64x = 18,421.02 × 7,380.19
  4. Step 4: Simplify right side
    13,348.64x = 135,950,650.62
  5. Step 5: Solve for x
    x = 135,950,650.62/13,348.64
  6. Step 6: Final answer
    x = 10,184.60

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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.