Home / 13,439.23-18,548.57-7,773.19

Finding the Fourth Proportional to 13,439.23, 18,548.57 and 7,773.19

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Solution

The fourth proportional to 13,439.23, 18,548.57 and 7,773.19 is: 10,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.23 : 18,548.57 = 7,773.19 : x
  2. Step 2: Convert to fraction form
    13,439.23/18,548.57 = 7,773.19/x
  3. Step 3: Cross multiply
    13,439.23x = 18,548.57 × 7,773.19
  4. Step 4: Simplify right side
    13,439.23x = 144,181,566.34
  5. Step 5: Solve for x
    x = 144,181,566.34/13,439.23
  6. Step 6: Final answer
    x = 10,728.41

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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.