Home / 12,810.57-19,216.85-4,916.88

Finding the Fourth Proportional to 12,810.57, 19,216.85 and 4,916.88

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Solution

The fourth proportional to 12,810.57, 19,216.85 and 4,916.88 is: 7,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.57 : 19,216.85 = 4,916.88 : x
  2. Step 2: Convert to fraction form
    12,810.57/19,216.85 = 4,916.88/x
  3. Step 3: Cross multiply
    12,810.57x = 19,216.85 × 4,916.88
  4. Step 4: Simplify right side
    12,810.57x = 94,486,920.84
  5. Step 5: Solve for x
    x = 94,486,920.84/12,810.57
  6. Step 6: Final answer
    x = 7,375.70

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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.