Home / 19,307.40-28,960.80-6,159.68

Finding the Fourth Proportional to 19,307.40, 28,960.80 and 6,159.68

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Solution

The fourth proportional to 19,307.40, 28,960.80 and 6,159.68 is: 9,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.40 : 28,960.80 = 6,159.68 : x
  2. Step 2: Convert to fraction form
    19,307.40/28,960.80 = 6,159.68/x
  3. Step 3: Cross multiply
    19,307.40x = 28,960.80 × 6,159.68
  4. Step 4: Simplify right side
    19,307.40x = 178,389,260.54
  5. Step 5: Solve for x
    x = 178,389,260.54/19,307.40
  6. Step 6: Final answer
    x = 9,239.42

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1.5x scale

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.