Home / 13,439.60-18,548.54-9,675.24

Finding the Fourth Proportional to 13,439.60, 18,548.54 and 9,675.24

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Solution

The fourth proportional to 13,439.60, 18,548.54 and 9,675.24 is: 13,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.60 : 18,548.54 = 9,675.24 : x
  2. Step 2: Convert to fraction form
    13,439.60/18,548.54 = 9,675.24/x
  3. Step 3: Cross multiply
    13,439.60x = 18,548.54 × 9,675.24
  4. Step 4: Simplify right side
    13,439.60x = 179,461,576.15
  5. Step 5: Solve for x
    x = 179,461,576.15/13,439.60
  6. Step 6: Final answer
    x = 13,353.19

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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.