Home / 11,813.98-16,303.71-6,509.20

Finding the Fourth Proportional to 11,813.98, 16,303.71 and 6,509.20

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Solution

The fourth proportional to 11,813.98, 16,303.71 and 6,509.20 is: 8,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.98 : 16,303.71 = 6,509.20 : x
  2. Step 2: Convert to fraction form
    11,813.98/16,303.71 = 6,509.20/x
  3. Step 3: Cross multiply
    11,813.98x = 16,303.71 × 6,509.20
  4. Step 4: Simplify right side
    11,813.98x = 106,124,109.13
  5. Step 5: Solve for x
    x = 106,124,109.13/11,813.98
  6. Step 6: Final answer
    x = 8,982.93

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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.