Home / 11,826.81-16,320.65-6,521.63

Finding the Fourth Proportional to 11,826.81, 16,320.65 and 6,521.63

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Solution

The fourth proportional to 11,826.81, 16,320.65 and 6,521.63 is: 8,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.81 : 16,320.65 = 6,521.63 : x
  2. Step 2: Convert to fraction form
    11,826.81/16,320.65 = 6,521.63/x
  3. Step 3: Cross multiply
    11,826.81x = 16,320.65 × 6,521.63
  4. Step 4: Simplify right side
    11,826.81x = 106,437,142.75
  5. Step 5: Solve for x
    x = 106,437,142.75/11,826.81
  6. Step 6: Final answer
    x = 8,999.65

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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.