Home / 12,210.60-18,303.30-6,652.20

Finding the Fourth Proportional to 12,210.60, 18,303.30 and 6,652.20

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Solution

The fourth proportional to 12,210.60, 18,303.30 and 6,652.20 is: 9,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.60 : 18,303.30 = 6,652.20 : x
  2. Step 2: Convert to fraction form
    12,210.60/18,303.30 = 6,652.20/x
  3. Step 3: Cross multiply
    12,210.60x = 18,303.30 × 6,652.20
  4. Step 4: Simplify right side
    12,210.60x = 121,757,212.26
  5. Step 5: Solve for x
    x = 121,757,212.26/12,210.60
  6. Step 6: Final answer
    x = 9,971.44

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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.