Home / 13,761.02-18,989.70-7,473.26

Finding the Fourth Proportional to 13,761.02, 18,989.70 and 7,473.26

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Solution

The fourth proportional to 13,761.02, 18,989.70 and 7,473.26 is: 10,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.02 : 18,989.70 = 7,473.26 : x
  2. Step 2: Convert to fraction form
    13,761.02/18,989.70 = 7,473.26/x
  3. Step 3: Cross multiply
    13,761.02x = 18,989.70 × 7,473.26
  4. Step 4: Simplify right side
    13,761.02x = 141,914,965.42
  5. Step 5: Solve for x
    x = 141,914,965.42/13,761.02
  6. Step 6: Final answer
    x = 10,312.82

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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.