Home / 13,471.98-18,589.15-7,807.24

Finding the Fourth Proportional to 13,471.98, 18,589.15 and 7,807.24

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Solution

The fourth proportional to 13,471.98, 18,589.15 and 7,807.24 is: 10,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.98 : 18,589.15 = 7,807.24 : x
  2. Step 2: Convert to fraction form
    13,471.98/18,589.15 = 7,807.24/x
  3. Step 3: Cross multiply
    13,471.98x = 18,589.15 × 7,807.24
  4. Step 4: Simplify right side
    13,471.98x = 145,129,955.45
  5. Step 5: Solve for x
    x = 145,129,955.45/13,471.98
  6. Step 6: Final answer
    x = 10,772.73

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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.