Home / 13,957.44-19,260.15-7,987.74

Finding the Fourth Proportional to 13,957.44, 19,260.15 and 7,987.74

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Solution

The fourth proportional to 13,957.44, 19,260.15 and 7,987.74 is: 11,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.44 : 19,260.15 = 7,987.74 : x
  2. Step 2: Convert to fraction form
    13,957.44/19,260.15 = 7,987.74/x
  3. Step 3: Cross multiply
    13,957.44x = 19,260.15 × 7,987.74
  4. Step 4: Simplify right side
    13,957.44x = 153,845,070.56
  5. Step 5: Solve for x
    x = 153,845,070.56/13,957.44
  6. Step 6: Final answer
    x = 11,022.44

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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.