Home / 12,149.10-16,774.92-9,801.72

Finding the Fourth Proportional to 12,149.10, 16,774.92 and 9,801.72

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Solution

The fourth proportional to 12,149.10, 16,774.92 and 9,801.72 is: 13,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.10 : 16,774.92 = 9,801.72 : x
  2. Step 2: Convert to fraction form
    12,149.10/16,774.92 = 9,801.72/x
  3. Step 3: Cross multiply
    12,149.10x = 16,774.92 × 9,801.72
  4. Step 4: Simplify right side
    12,149.10x = 164,423,068.86
  5. Step 5: Solve for x
    x = 164,423,068.86/12,149.10
  6. Step 6: Final answer
    x = 13,533.77

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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.