Home / 11,346.20-16,985.70-8,437.40

Finding the Fourth Proportional to 11,346.20, 16,985.70 and 8,437.40

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Solution

The fourth proportional to 11,346.20, 16,985.70 and 8,437.40 is: 12,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346.20 : 16,985.70 = 8,437.40 : x
  2. Step 2: Convert to fraction form
    11,346.20/16,985.70 = 8,437.40/x
  3. Step 3: Cross multiply
    11,346.20x = 16,985.70 × 8,437.40
  4. Step 4: Simplify right side
    11,346.20x = 143,315,145.18
  5. Step 5: Solve for x
    x = 143,315,145.18/11,346.20
  6. Step 6: Final answer
    x = 12,631.11

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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.