Home / 10,284.39-15,423.39-3,709.72

Finding the Fourth Proportional to 10,284.39, 15,423.39 and 3,709.72

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Solution

The fourth proportional to 10,284.39, 15,423.39 and 3,709.72 is: 5,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.39 : 15,423.39 = 3,709.72 : x
  2. Step 2: Convert to fraction form
    10,284.39/15,423.39 = 3,709.72/x
  3. Step 3: Cross multiply
    10,284.39x = 15,423.39 × 3,709.72
  4. Step 4: Simplify right side
    10,284.39x = 57,216,477.63
  5. Step 5: Solve for x
    x = 57,216,477.63/10,284.39
  6. Step 6: Final answer
    x = 5,563.43

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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.