Home / 18,690.45-28,032.90-6,210.18

Finding the Fourth Proportional to 18,690.45, 28,032.90 and 6,210.18

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Solution

The fourth proportional to 18,690.45, 28,032.90 and 6,210.18 is: 9,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.45 : 28,032.90 = 6,210.18 : x
  2. Step 2: Convert to fraction form
    18,690.45/28,032.90 = 6,210.18/x
  3. Step 3: Cross multiply
    18,690.45x = 28,032.90 × 6,210.18
  4. Step 4: Simplify right side
    18,690.45x = 174,089,354.92
  5. Step 5: Solve for x
    x = 174,089,354.92/18,690.45
  6. Step 6: Final answer
    x = 9,314.35

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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.