Home / 18,690.20-28,040.01-6,210.29

Finding the Fourth Proportional to 18,690.20, 28,040.01 and 6,210.29

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Solution

The fourth proportional to 18,690.20, 28,040.01 and 6,210.29 is: 9,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.20 : 28,040.01 = 6,210.29 : x
  2. Step 2: Convert to fraction form
    18,690.20/28,040.01 = 6,210.29/x
  3. Step 3: Cross multiply
    18,690.20x = 28,040.01 × 6,210.29
  4. Step 4: Simplify right side
    18,690.20x = 174,136,453.50
  5. Step 5: Solve for x
    x = 174,136,453.50/18,690.20
  6. Step 6: Final answer
    x = 9,317.00

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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.