Home / 10,439.04-15,644.93-9,119.62

Finding the Fourth Proportional to 10,439.04, 15,644.93 and 9,119.62

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Solution

The fourth proportional to 10,439.04, 15,644.93 and 9,119.62 is: 13,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.04 : 15,644.93 = 9,119.62 : x
  2. Step 2: Convert to fraction form
    10,439.04/15,644.93 = 9,119.62/x
  3. Step 3: Cross multiply
    10,439.04x = 15,644.93 × 9,119.62
  4. Step 4: Simplify right side
    10,439.04x = 142,675,731.82
  5. Step 5: Solve for x
    x = 142,675,731.82/10,439.04
  6. Step 6: Final answer
    x = 13,667.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.