Home / 12,045.81-16,623.60-6,740.62

Finding the Fourth Proportional to 12,045.81, 16,623.60 and 6,740.62

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Solution

The fourth proportional to 12,045.81, 16,623.60 and 6,740.62 is: 9,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.81 : 16,623.60 = 6,740.62 : x
  2. Step 2: Convert to fraction form
    12,045.81/16,623.60 = 6,740.62/x
  3. Step 3: Cross multiply
    12,045.81x = 16,623.60 × 6,740.62
  4. Step 4: Simplify right side
    12,045.81x = 112,053,303.80
  5. Step 5: Solve for x
    x = 112,053,303.80/12,045.81
  6. Step 6: Final answer
    x = 9,302.26

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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.