Home / 13,987.73-19,296.54-8,319.29

Finding the Fourth Proportional to 13,987.73, 19,296.54 and 8,319.29

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Solution

The fourth proportional to 13,987.73, 19,296.54 and 8,319.29 is: 11,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.73 : 19,296.54 = 8,319.29 : x
  2. Step 2: Convert to fraction form
    13,987.73/19,296.54 = 8,319.29/x
  3. Step 3: Cross multiply
    13,987.73x = 19,296.54 × 8,319.29
  4. Step 4: Simplify right side
    13,987.73x = 160,533,415.77
  5. Step 5: Solve for x
    x = 160,533,415.77/13,987.73
  6. Step 6: Final answer
    x = 11,476.74

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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.