Home / 8,434.06-12,631.41-6,667.20

Finding the Fourth Proportional to 8,434.06, 12,631.41 and 6,667.20

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Solution

The fourth proportional to 8,434.06, 12,631.41 and 6,667.20 is: 9,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.06 : 12,631.41 = 6,667.20 : x
  2. Step 2: Convert to fraction form
    8,434.06/12,631.41 = 6,667.20/x
  3. Step 3: Cross multiply
    8,434.06x = 12,631.41 × 6,667.20
  4. Step 4: Simplify right side
    8,434.06x = 84,216,136.75
  5. Step 5: Solve for x
    x = 84,216,136.75/8,434.06
  6. Step 6: Final answer
    x = 9,985.24

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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.