Home / 13,586.58-18,750.25-7,617.96

Finding the Fourth Proportional to 13,586.58, 18,750.25 and 7,617.96

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Solution

The fourth proportional to 13,586.58, 18,750.25 and 7,617.96 is: 10,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.58 : 18,750.25 = 7,617.96 : x
  2. Step 2: Convert to fraction form
    13,586.58/18,750.25 = 7,617.96/x
  3. Step 3: Cross multiply
    13,586.58x = 18,750.25 × 7,617.96
  4. Step 4: Simplify right side
    13,586.58x = 142,838,654.49
  5. Step 5: Solve for x
    x = 142,838,654.49/13,586.58
  6. Step 6: Final answer
    x = 10,513.22

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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.