Home / 12,695.40-19,055.38-6,126.20

Finding the Fourth Proportional to 12,695.40, 19,055.38 and 6,126.20

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Solution

The fourth proportional to 12,695.40, 19,055.38 and 6,126.20 is: 9,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.40 : 19,055.38 = 6,126.20 : x
  2. Step 2: Convert to fraction form
    12,695.40/19,055.38 = 6,126.20/x
  3. Step 3: Cross multiply
    12,695.40x = 19,055.38 × 6,126.20
  4. Step 4: Simplify right side
    12,695.40x = 116,737,068.96
  5. Step 5: Solve for x
    x = 116,737,068.96/12,695.40
  6. Step 6: Final answer
    x = 9,195.23

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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.