Home / 13,348.02-18,420.17-7,379.94

Finding the Fourth Proportional to 13,348.02, 18,420.17 and 7,379.94

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Solution

The fourth proportional to 13,348.02, 18,420.17 and 7,379.94 is: 10,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.02 : 18,420.17 = 7,379.94 : x
  2. Step 2: Convert to fraction form
    13,348.02/18,420.17 = 7,379.94/x
  3. Step 3: Cross multiply
    13,348.02x = 18,420.17 × 7,379.94
  4. Step 4: Simplify right side
    13,348.02x = 135,939,712.49
  5. Step 5: Solve for x
    x = 135,939,712.49/13,348.02
  6. Step 6: Final answer
    x = 10,184.26

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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.