Home / 19,290.61-28,952.21-7,612.03

Finding the Fourth Proportional to 19,290.61, 28,952.21 and 7,612.03

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Solution

The fourth proportional to 19,290.61, 28,952.21 and 7,612.03 is: 11,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.61 : 28,952.21 = 7,612.03 : x
  2. Step 2: Convert to fraction form
    19,290.61/28,952.21 = 7,612.03/x
  3. Step 3: Cross multiply
    19,290.61x = 28,952.21 × 7,612.03
  4. Step 4: Simplify right side
    19,290.61x = 220,385,091.09
  5. Step 5: Solve for x
    x = 220,385,091.09/19,290.61
  6. Step 6: Final answer
    x = 11,424.47

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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.