Home / 13,956.69-19,261.09-7,988.22

Finding the Fourth Proportional to 13,956.69, 19,261.09 and 7,988.22

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Solution

The fourth proportional to 13,956.69, 19,261.09 and 7,988.22 is: 11,024.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.69 : 19,261.09 = 7,988.22 : x
  2. Step 2: Convert to fraction form
    13,956.69/19,261.09 = 7,988.22/x
  3. Step 3: Cross multiply
    13,956.69x = 19,261.09 × 7,988.22
  4. Step 4: Simplify right side
    13,956.69x = 153,861,834.35
  5. Step 5: Solve for x
    x = 153,861,834.35/13,956.69
  6. Step 6: Final answer
    x = 11,024.24

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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.