Home / 19,003.20-28,490.64-9,133.20

Finding the Fourth Proportional to 19,003.20, 28,490.64 and 9,133.20

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Solution

The fourth proportional to 19,003.20, 28,490.64 and 9,133.20 is: 13,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,003.20 : 28,490.64 = 9,133.20 : x
  2. Step 2: Convert to fraction form
    19,003.20/28,490.64 = 9,133.20/x
  3. Step 3: Cross multiply
    19,003.20x = 28,490.64 × 9,133.20
  4. Step 4: Simplify right side
    19,003.20x = 260,210,713.25
  5. Step 5: Solve for x
    x = 260,210,713.25/19,003.20
  6. Step 6: Final answer
    x = 13,692.99

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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.