Home / 8,813.90-13,222.67-2,970.96

Finding the Fourth Proportional to 8,813.90, 13,222.67 and 2,970.96

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Solution

The fourth proportional to 8,813.90, 13,222.67 and 2,970.96 is: 4,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.90 : 13,222.67 = 2,970.96 : x
  2. Step 2: Convert to fraction form
    8,813.90/13,222.67 = 2,970.96/x
  3. Step 3: Cross multiply
    8,813.90x = 13,222.67 × 2,970.96
  4. Step 4: Simplify right side
    8,813.90x = 39,284,008.81
  5. Step 5: Solve for x
    x = 39,284,008.81/8,813.90
  6. Step 6: Final answer
    x = 4,457.05

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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.