Home / 13,987.68-19,302.98-7,700

Finding the Fourth Proportional to 13,987.68, 19,302.98 and 7,700

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Solution

The fourth proportional to 13,987.68, 19,302.98 and 7,700 is: 10,625.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.68 : 19,302.98 = 7,700 : x
  2. Step 2: Convert to fraction form
    13,987.68/19,302.98 = 7,700/x
  3. Step 3: Cross multiply
    13,987.68x = 19,302.98 × 7,700
  4. Step 4: Simplify right side
    13,987.68x = 148,632,946
  5. Step 5: Solve for x
    x = 148,632,946/13,987.68
  6. Step 6: Final answer
    x = 10,625.99

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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.