Home / 11,947.04-16,486.98-6,642.35

Finding the Fourth Proportional to 11,947.04, 16,486.98 and 6,642.35

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Solution

The fourth proportional to 11,947.04, 16,486.98 and 6,642.35 is: 9,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.04 : 16,486.98 = 6,642.35 : x
  2. Step 2: Convert to fraction form
    11,947.04/16,486.98 = 6,642.35/x
  3. Step 3: Cross multiply
    11,947.04x = 16,486.98 × 6,642.35
  4. Step 4: Simplify right side
    11,947.04x = 109,512,291.60
  5. Step 5: Solve for x
    x = 109,512,291.60/11,947.04
  6. Step 6: Final answer
    x = 9,166.48

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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.