Home / 13,038.05-19,524.66-11,931.99

Finding the Fourth Proportional to 13,038.05, 19,524.66 and 11,931.99

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Solution

The fourth proportional to 13,038.05, 19,524.66 and 11,931.99 is: 17,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.05 : 19,524.66 = 11,931.99 : x
  2. Step 2: Convert to fraction form
    13,038.05/19,524.66 = 11,931.99/x
  3. Step 3: Cross multiply
    13,038.05x = 19,524.66 × 11,931.99
  4. Step 4: Simplify right side
    13,038.05x = 232,968,047.87
  5. Step 5: Solve for x
    x = 232,968,047.87/13,038.05
  6. Step 6: Final answer
    x = 17,868.33

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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.