Home / 12,219.12-16,862.27-6,913.89

Finding the Fourth Proportional to 12,219.12, 16,862.27 and 6,913.89

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Solution

The fourth proportional to 12,219.12, 16,862.27 and 6,913.89 is: 9,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.12 : 16,862.27 = 6,913.89 : x
  2. Step 2: Convert to fraction form
    12,219.12/16,862.27 = 6,913.89/x
  3. Step 3: Cross multiply
    12,219.12x = 16,862.27 × 6,913.89
  4. Step 4: Simplify right side
    12,219.12x = 116,583,845.36
  5. Step 5: Solve for x
    x = 116,583,845.36/12,219.12
  6. Step 6: Final answer
    x = 9,541.10

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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.