Home / 14,478.55-21,719.14-5,117.58

Finding the Fourth Proportional to 14,478.55, 21,719.14 and 5,117.58

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Solution

The fourth proportional to 14,478.55, 21,719.14 and 5,117.58 is: 7,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.55 : 21,719.14 = 5,117.58 : x
  2. Step 2: Convert to fraction form
    14,478.55/21,719.14 = 5,117.58/x
  3. Step 3: Cross multiply
    14,478.55x = 21,719.14 × 5,117.58
  4. Step 4: Simplify right side
    14,478.55x = 111,149,423.69
  5. Step 5: Solve for x
    x = 111,149,423.69/14,478.55
  6. Step 6: Final answer
    x = 7,676.84

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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.