Home / 10,688.16-16,031.60-4,117.60

Finding the Fourth Proportional to 10,688.16, 16,031.60 and 4,117.60

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Solution

The fourth proportional to 10,688.16, 16,031.60 and 4,117.60 is: 6,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.16 : 16,031.60 = 4,117.60 : x
  2. Step 2: Convert to fraction form
    10,688.16/16,031.60 = 4,117.60/x
  3. Step 3: Cross multiply
    10,688.16x = 16,031.60 × 4,117.60
  4. Step 4: Simplify right side
    10,688.16x = 66,011,716.16
  5. Step 5: Solve for x
    x = 66,011,716.16/10,688.16
  6. Step 6: Final answer
    x = 6,176.15

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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.