Home / 8,434.40-12,631.90-6,667.54

Finding the Fourth Proportional to 8,434.40, 12,631.90 and 6,667.54

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Solution

The fourth proportional to 8,434.40, 12,631.90 and 6,667.54 is: 9,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.40 : 12,631.90 = 6,667.54 : x
  2. Step 2: Convert to fraction form
    8,434.40/12,631.90 = 6,667.54/x
  3. Step 3: Cross multiply
    8,434.40x = 12,631.90 × 6,667.54
  4. Step 4: Simplify right side
    8,434.40x = 84,223,698.31
  5. Step 5: Solve for x
    x = 84,223,698.31/8,434.40
  6. Step 6: Final answer
    x = 9,985.73

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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.