Home / 13,342.26-19,987.47-7,502.70

Finding the Fourth Proportional to 13,342.26, 19,987.47 and 7,502.70

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Solution

The fourth proportional to 13,342.26, 19,987.47 and 7,502.70 is: 11,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.26 : 19,987.47 = 7,502.70 : x
  2. Step 2: Convert to fraction form
    13,342.26/19,987.47 = 7,502.70/x
  3. Step 3: Cross multiply
    13,342.26x = 19,987.47 × 7,502.70
  4. Step 4: Simplify right side
    13,342.26x = 149,959,991.17
  5. Step 5: Solve for x
    x = 149,959,991.17/13,342.26
  6. Step 6: Final answer
    x = 11,239.47

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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.