Home / 12,437.42-18,636.58-8,685.50

Finding the Fourth Proportional to 12,437.42, 18,636.58 and 8,685.50

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Solution

The fourth proportional to 12,437.42, 18,636.58 and 8,685.50 is: 13,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.42 : 18,636.58 = 8,685.50 : x
  2. Step 2: Convert to fraction form
    12,437.42/18,636.58 = 8,685.50/x
  3. Step 3: Cross multiply
    12,437.42x = 18,636.58 × 8,685.50
  4. Step 4: Simplify right side
    12,437.42x = 161,867,933.26
  5. Step 5: Solve for x
    x = 161,867,933.26/12,437.42
  6. Step 6: Final answer
    x = 13,014.60

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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.