Home / 12,068.80-16,655.16-6,763.60

Finding the Fourth Proportional to 12,068.80, 16,655.16 and 6,763.60

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Solution

The fourth proportional to 12,068.80, 16,655.16 and 6,763.60 is: 9,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.80 : 16,655.16 = 6,763.60 : x
  2. Step 2: Convert to fraction form
    12,068.80/16,655.16 = 6,763.60/x
  3. Step 3: Cross multiply
    12,068.80x = 16,655.16 × 6,763.60
  4. Step 4: Simplify right side
    12,068.80x = 112,648,840.18
  5. Step 5: Solve for x
    x = 112,648,840.18/12,068.80
  6. Step 6: Final answer
    x = 9,333.89

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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.