Home / 12,976.60-19,464.90-7,130.04

Finding the Fourth Proportional to 12,976.60, 19,464.90 and 7,130.04

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Solution

The fourth proportional to 12,976.60, 19,464.90 and 7,130.04 is: 10,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.60 : 19,464.90 = 7,130.04 : x
  2. Step 2: Convert to fraction form
    12,976.60/19,464.90 = 7,130.04/x
  3. Step 3: Cross multiply
    12,976.60x = 19,464.90 × 7,130.04
  4. Step 4: Simplify right side
    12,976.60x = 138,785,515.60
  5. Step 5: Solve for x
    x = 138,785,515.60/12,976.60
  6. Step 6: Final answer
    x = 10,695.06

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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.