Home / 12,709.99-19,062.64-5,312.46

Finding the Fourth Proportional to 12,709.99, 19,062.64 and 5,312.46

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Solution

The fourth proportional to 12,709.99, 19,062.64 and 5,312.46 is: 7,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.99 : 19,062.64 = 5,312.46 : x
  2. Step 2: Convert to fraction form
    12,709.99/19,062.64 = 5,312.46/x
  3. Step 3: Cross multiply
    12,709.99x = 19,062.64 × 5,312.46
  4. Step 4: Simplify right side
    12,709.99x = 101,269,512.49
  5. Step 5: Solve for x
    x = 101,269,512.49/12,709.99
  6. Step 6: Final answer
    x = 7,967.71

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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.