Home / 13,948.28-19,243.91-7,975.70

Finding the Fourth Proportional to 13,948.28, 19,243.91 and 7,975.70

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Solution

The fourth proportional to 13,948.28, 19,243.91 and 7,975.70 is: 11,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.28 : 19,243.91 = 7,975.70 : x
  2. Step 2: Convert to fraction form
    13,948.28/19,243.91 = 7,975.70/x
  3. Step 3: Cross multiply
    13,948.28x = 19,243.91 × 7,975.70
  4. Step 4: Simplify right side
    13,948.28x = 153,483,652.99
  5. Step 5: Solve for x
    x = 153,483,652.99/13,948.28
  6. Step 6: Final answer
    x = 11,003.77

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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.