Home / 10,289.42-15,434.12-3,715.58

Finding the Fourth Proportional to 10,289.42, 15,434.12 and 3,715.58

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Solution

The fourth proportional to 10,289.42, 15,434.12 and 3,715.58 is: 5,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.42 : 15,434.12 = 3,715.58 : x
  2. Step 2: Convert to fraction form
    10,289.42/15,434.12 = 3,715.58/x
  3. Step 3: Cross multiply
    10,289.42x = 15,434.12 × 3,715.58
  4. Step 4: Simplify right side
    10,289.42x = 57,346,707.59
  5. Step 5: Solve for x
    x = 57,346,707.59/10,289.42
  6. Step 6: Final answer
    x = 5,573.37

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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.