Home / 13,988.48-19,299.74-7,937.72

Finding the Fourth Proportional to 13,988.48, 19,299.74 and 7,937.72

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Solution

The fourth proportional to 13,988.48, 19,299.74 and 7,937.72 is: 10,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.48 : 19,299.74 = 7,937.72 : x
  2. Step 2: Convert to fraction form
    13,988.48/19,299.74 = 7,937.72/x
  3. Step 3: Cross multiply
    13,988.48x = 19,299.74 × 7,937.72
  4. Step 4: Simplify right side
    13,988.48x = 153,195,796.01
  5. Step 5: Solve for x
    x = 153,195,796.01/13,988.48
  6. Step 6: Final answer
    x = 10,951.57

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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.