Home / 10,214.15-15,334.18-8,684.87

Finding the Fourth Proportional to 10,214.15, 15,334.18 and 8,684.87

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Solution

The fourth proportional to 10,214.15, 15,334.18 and 8,684.87 is: 13,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.15 : 15,334.18 = 8,684.87 : x
  2. Step 2: Convert to fraction form
    10,214.15/15,334.18 = 8,684.87/x
  3. Step 3: Cross multiply
    10,214.15x = 15,334.18 × 8,684.87
  4. Step 4: Simplify right side
    10,214.15x = 133,175,261.47
  5. Step 5: Solve for x
    x = 133,175,261.47/10,214.15
  6. Step 6: Final answer
    x = 13,038.32

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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.