Home / 8,220.60-12,337.38-3,030.12

Finding the Fourth Proportional to 8,220.60, 12,337.38 and 3,030.12

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Solution

The fourth proportional to 8,220.60, 12,337.38 and 3,030.12 is: 4,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.60 : 12,337.38 = 3,030.12 : x
  2. Step 2: Convert to fraction form
    8,220.60/12,337.38 = 3,030.12/x
  3. Step 3: Cross multiply
    8,220.60x = 12,337.38 × 3,030.12
  4. Step 4: Simplify right side
    8,220.60x = 37,383,741.89
  5. Step 5: Solve for x
    x = 37,383,741.89/8,220.60
  6. Step 6: Final answer
    x = 4,547.57

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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.