Home / 8,622.36-12,921.18-4,916.94

Finding the Fourth Proportional to 8,622.36, 12,921.18 and 4,916.94

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Solution

The fourth proportional to 8,622.36, 12,921.18 and 4,916.94 is: 7,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.36 : 12,921.18 = 4,916.94 : x
  2. Step 2: Convert to fraction form
    8,622.36/12,921.18 = 4,916.94/x
  3. Step 3: Cross multiply
    8,622.36x = 12,921.18 × 4,916.94
  4. Step 4: Simplify right side
    8,622.36x = 63,532,666.79
  5. Step 5: Solve for x
    x = 63,532,666.79/8,622.36
  6. Step 6: Final answer
    x = 7,368.36

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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.