Home / 13,956.94-19,259.46-7,987.24

Finding the Fourth Proportional to 13,956.94, 19,259.46 and 7,987.24

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Solution

The fourth proportional to 13,956.94, 19,259.46 and 7,987.24 is: 11,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.94 : 19,259.46 = 7,987.24 : x
  2. Step 2: Convert to fraction form
    13,956.94/19,259.46 = 7,987.24/x
  3. Step 3: Cross multiply
    13,956.94x = 19,259.46 × 7,987.24
  4. Step 4: Simplify right side
    13,956.94x = 153,829,929.29
  5. Step 5: Solve for x
    x = 153,829,929.29/13,956.94
  6. Step 6: Final answer
    x = 11,021.75

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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.