Home / 12,045.12-16,623.84-8,698.72

Finding the Fourth Proportional to 12,045.12, 16,623.84 and 8,698.72

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Solution

The fourth proportional to 12,045.12, 16,623.84 and 8,698.72 is: 12,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.12 : 16,623.84 = 8,698.72 : x
  2. Step 2: Convert to fraction form
    12,045.12/16,623.84 = 8,698.72/x
  3. Step 3: Cross multiply
    12,045.12x = 16,623.84 × 8,698.72
  4. Step 4: Simplify right side
    12,045.12x = 144,606,129.48
  5. Step 5: Solve for x
    x = 144,606,129.48/12,045.12
  6. Step 6: Final answer
    x = 12,005.37

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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.