Home / 12,964.13-19,445.28-7,400.03

Finding the Fourth Proportional to 12,964.13, 19,445.28 and 7,400.03

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Solution

The fourth proportional to 12,964.13, 19,445.28 and 7,400.03 is: 11,099.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.13 : 19,445.28 = 7,400.03 : x
  2. Step 2: Convert to fraction form
    12,964.13/19,445.28 = 7,400.03/x
  3. Step 3: Cross multiply
    12,964.13x = 19,445.28 × 7,400.03
  4. Step 4: Simplify right side
    12,964.13x = 143,895,655.36
  5. Step 5: Solve for x
    x = 143,895,655.36/12,964.13
  6. Step 6: Final answer
    x = 11,099.52

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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.