Home / 10,439.11-15,667.39-9,782.27

Finding the Fourth Proportional to 10,439.11, 15,667.39 and 9,782.27

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Solution

The fourth proportional to 10,439.11, 15,667.39 and 9,782.27 is: 14,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.11 : 15,667.39 = 9,782.27 : x
  2. Step 2: Convert to fraction form
    10,439.11/15,667.39 = 9,782.27/x
  3. Step 3: Cross multiply
    10,439.11x = 15,667.39 × 9,782.27
  4. Step 4: Simplify right side
    10,439.11x = 153,262,631.82
  5. Step 5: Solve for x
    x = 153,262,631.82/10,439.11
  6. Step 6: Final answer
    x = 14,681.58

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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.