Home / 12,709.08-19,055.93-5,687.78

Finding the Fourth Proportional to 12,709.08, 19,055.93 and 5,687.78

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Solution

The fourth proportional to 12,709.08, 19,055.93 and 5,687.78 is: 8,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.08 : 19,055.93 = 5,687.78 : x
  2. Step 2: Convert to fraction form
    12,709.08/19,055.93 = 5,687.78/x
  3. Step 3: Cross multiply
    12,709.08x = 19,055.93 × 5,687.78
  4. Step 4: Simplify right side
    12,709.08x = 108,385,813.82
  5. Step 5: Solve for x
    x = 108,385,813.82/12,709.08
  6. Step 6: Final answer
    x = 8,528.22

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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.