Home / 13,953.93-19,257.50-7,987.47

Finding the Fourth Proportional to 13,953.93, 19,257.50 and 7,987.47

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Solution

The fourth proportional to 13,953.93, 19,257.50 and 7,987.47 is: 11,023.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.93 : 19,257.50 = 7,987.47 : x
  2. Step 2: Convert to fraction form
    13,953.93/19,257.50 = 7,987.47/x
  3. Step 3: Cross multiply
    13,953.93x = 19,257.50 × 7,987.47
  4. Step 4: Simplify right side
    13,953.93x = 153,818,663.59
  5. Step 5: Solve for x
    x = 153,818,663.59/13,953.93
  6. Step 6: Final answer
    x = 11,023.32

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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.