Home / 12,848.87-19,260.18-7,290.47

Finding the Fourth Proportional to 12,848.87, 19,260.18 and 7,290.47

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Solution

The fourth proportional to 12,848.87, 19,260.18 and 7,290.47 is: 10,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.87 : 19,260.18 = 7,290.47 : x
  2. Step 2: Convert to fraction form
    12,848.87/19,260.18 = 7,290.47/x
  3. Step 3: Cross multiply
    12,848.87x = 19,260.18 × 7,290.47
  4. Step 4: Simplify right side
    12,848.87x = 140,415,853.26
  5. Step 5: Solve for x
    x = 140,415,853.26/12,848.87
  6. Step 6: Final answer
    x = 10,928.26

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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.