Home / 19,077.88-28,603.98-7,377.40

Finding the Fourth Proportional to 19,077.88, 28,603.98 and 7,377.40

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Solution

The fourth proportional to 19,077.88, 28,603.98 and 7,377.40 is: 11,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077.88 : 28,603.98 = 7,377.40 : x
  2. Step 2: Convert to fraction form
    19,077.88/28,603.98 = 7,377.40/x
  3. Step 3: Cross multiply
    19,077.88x = 28,603.98 × 7,377.40
  4. Step 4: Simplify right side
    19,077.88x = 211,023,002.05
  5. Step 5: Solve for x
    x = 211,023,002.05/19,077.88
  6. Step 6: Final answer
    x = 11,061.13

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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.