Home / 13,309.62-19,955.52-4,988.58

Finding the Fourth Proportional to 13,309.62, 19,955.52 and 4,988.58

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Solution

The fourth proportional to 13,309.62, 19,955.52 and 4,988.58 is: 7,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.62 : 19,955.52 = 4,988.58 : x
  2. Step 2: Convert to fraction form
    13,309.62/19,955.52 = 4,988.58/x
  3. Step 3: Cross multiply
    13,309.62x = 19,955.52 × 4,988.58
  4. Step 4: Simplify right side
    13,309.62x = 99,549,707.96
  5. Step 5: Solve for x
    x = 99,549,707.96/13,309.62
  6. Step 6: Final answer
    x = 7,479.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.