Home / 13,718.09-18,911.58-9,737.75

Finding the Fourth Proportional to 13,718.09, 18,911.58 and 9,737.75

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Solution

The fourth proportional to 13,718.09, 18,911.58 and 9,737.75 is: 13,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.09 : 18,911.58 = 9,737.75 : x
  2. Step 2: Convert to fraction form
    13,718.09/18,911.58 = 9,737.75/x
  3. Step 3: Cross multiply
    13,718.09x = 18,911.58 × 9,737.75
  4. Step 4: Simplify right side
    13,718.09x = 184,156,248.91
  5. Step 5: Solve for x
    x = 184,156,248.91/13,718.09
  6. Step 6: Final answer
    x = 13,424.33

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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.