Home / 12,959.40-19,426.30-6,722.60

Finding the Fourth Proportional to 12,959.40, 19,426.30 and 6,722.60

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Solution

The fourth proportional to 12,959.40, 19,426.30 and 6,722.60 is: 10,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.40 : 19,426.30 = 6,722.60 : x
  2. Step 2: Convert to fraction form
    12,959.40/19,426.30 = 6,722.60/x
  3. Step 3: Cross multiply
    12,959.40x = 19,426.30 × 6,722.60
  4. Step 4: Simplify right side
    12,959.40x = 130,595,244.38
  5. Step 5: Solve for x
    x = 130,595,244.38/12,959.40
  6. Step 6: Final answer
    x = 10,077.26

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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.