Home / 13,923.88-19,215.02-7,636.26

Finding the Fourth Proportional to 13,923.88, 19,215.02 and 7,636.26

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Solution

The fourth proportional to 13,923.88, 19,215.02 and 7,636.26 is: 10,538.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.88 : 19,215.02 = 7,636.26 : x
  2. Step 2: Convert to fraction form
    13,923.88/19,215.02 = 7,636.26/x
  3. Step 3: Cross multiply
    13,923.88x = 19,215.02 × 7,636.26
  4. Step 4: Simplify right side
    13,923.88x = 146,730,888.63
  5. Step 5: Solve for x
    x = 146,730,888.63/13,923.88
  6. Step 6: Final answer
    x = 10,538.07

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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.