Home / 13,953.63-19,252.98-7,987.17

Finding the Fourth Proportional to 13,953.63, 19,252.98 and 7,987.17

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Solution

The fourth proportional to 13,953.63, 19,252.98 and 7,987.17 is: 11,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.63 : 19,252.98 = 7,987.17 : x
  2. Step 2: Convert to fraction form
    13,953.63/19,252.98 = 7,987.17/x
  3. Step 3: Cross multiply
    13,953.63x = 19,252.98 × 7,987.17
  4. Step 4: Simplify right side
    13,953.63x = 153,776,824.27
  5. Step 5: Solve for x
    x = 153,776,824.27/13,953.63
  6. Step 6: Final answer
    x = 11,020.56

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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.