Home / 11,005.80-16,484.40-7,069.20

Finding the Fourth Proportional to 11,005.80, 16,484.40 and 7,069.20

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Solution

The fourth proportional to 11,005.80, 16,484.40 and 7,069.20 is: 10,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.80 : 16,484.40 = 7,069.20 : x
  2. Step 2: Convert to fraction form
    11,005.80/16,484.40 = 7,069.20/x
  3. Step 3: Cross multiply
    11,005.80x = 16,484.40 × 7,069.20
  4. Step 4: Simplify right side
    11,005.80x = 116,531,520.48
  5. Step 5: Solve for x
    x = 116,531,520.48/11,005.80
  6. Step 6: Final answer
    x = 10,588.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.