Home / 19,008.16-28,493.10-7,920.98

Finding the Fourth Proportional to 19,008.16, 28,493.10 and 7,920.98

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Solution

The fourth proportional to 19,008.16, 28,493.10 and 7,920.98 is: 11,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.16 : 28,493.10 = 7,920.98 : x
  2. Step 2: Convert to fraction form
    19,008.16/28,493.10 = 7,920.98/x
  3. Step 3: Cross multiply
    19,008.16x = 28,493.10 × 7,920.98
  4. Step 4: Simplify right side
    19,008.16x = 225,693,275.24
  5. Step 5: Solve for x
    x = 225,693,275.24/19,008.16
  6. Step 6: Final answer
    x = 11,873.49

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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.