Home / 13,985.68-19,300.08-7,697.92

Finding the Fourth Proportional to 13,985.68, 19,300.08 and 7,697.92

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Solution

The fourth proportional to 13,985.68, 19,300.08 and 7,697.92 is: 10,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.68 : 19,300.08 = 7,697.92 : x
  2. Step 2: Convert to fraction form
    13,985.68/19,300.08 = 7,697.92/x
  3. Step 3: Cross multiply
    13,985.68x = 19,300.08 × 7,697.92
  4. Step 4: Simplify right side
    13,985.68x = 148,570,471.83
  5. Step 5: Solve for x
    x = 148,570,471.83/13,985.68
  6. Step 6: Final answer
    x = 10,623.04

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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.