Home / 19,111.92-28,683.60-9,758.76

Finding the Fourth Proportional to 19,111.92, 28,683.60 and 9,758.76

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Solution

The fourth proportional to 19,111.92, 28,683.60 and 9,758.76 is: 14,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.92 : 28,683.60 = 9,758.76 : x
  2. Step 2: Convert to fraction form
    19,111.92/28,683.60 = 9,758.76/x
  3. Step 3: Cross multiply
    19,111.92x = 28,683.60 × 9,758.76
  4. Step 4: Simplify right side
    19,111.92x = 279,916,368.34
  5. Step 5: Solve for x
    x = 279,916,368.34/19,111.92
  6. Step 6: Final answer
    x = 14,646.17

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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.