Home / 8,218.67-11,341.72-4,681.90

Finding the Fourth Proportional to 8,218.67, 11,341.72 and 4,681.90

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Solution

The fourth proportional to 8,218.67, 11,341.72 and 4,681.90 is: 6,461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.67 : 11,341.72 = 4,681.90 : x
  2. Step 2: Convert to fraction form
    8,218.67/11,341.72 = 4,681.90/x
  3. Step 3: Cross multiply
    8,218.67x = 11,341.72 × 4,681.90
  4. Step 4: Simplify right side
    8,218.67x = 53,100,818.90
  5. Step 5: Solve for x
    x = 53,100,818.90/8,218.67
  6. Step 6: Final answer
    x = 6,461.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.