Home / 11,160.57-15,400.47-6,446.37

Finding the Fourth Proportional to 11,160.57, 15,400.47 and 6,446.37

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Solution

The fourth proportional to 11,160.57, 15,400.47 and 6,446.37 is: 8,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.57 : 15,400.47 = 6,446.37 : x
  2. Step 2: Convert to fraction form
    11,160.57/15,400.47 = 6,446.37/x
  3. Step 3: Cross multiply
    11,160.57x = 15,400.47 × 6,446.37
  4. Step 4: Simplify right side
    11,160.57x = 99,277,127.79
  5. Step 5: Solve for x
    x = 99,277,127.79/11,160.57
  6. Step 6: Final answer
    x = 8,895.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.