Home / 12,853.44-19,271.64-7,309.40

Finding the Fourth Proportional to 12,853.44, 19,271.64 and 7,309.40

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Solution

The fourth proportional to 12,853.44, 19,271.64 and 7,309.40 is: 10,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.44 : 19,271.64 = 7,309.40 : x
  2. Step 2: Convert to fraction form
    12,853.44/19,271.64 = 7,309.40/x
  3. Step 3: Cross multiply
    12,853.44x = 19,271.64 × 7,309.40
  4. Step 4: Simplify right side
    12,853.44x = 140,864,125.42
  5. Step 5: Solve for x
    x = 140,864,125.42/12,853.44
  6. Step 6: Final answer
    x = 10,959.25

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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.