Home / 12,087.36-16,681.68-7,053.12

Finding the Fourth Proportional to 12,087.36, 16,681.68 and 7,053.12

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Solution

The fourth proportional to 12,087.36, 16,681.68 and 7,053.12 is: 9,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.36 : 16,681.68 = 7,053.12 : x
  2. Step 2: Convert to fraction form
    12,087.36/16,681.68 = 7,053.12/x
  3. Step 3: Cross multiply
    12,087.36x = 16,681.68 × 7,053.12
  4. Step 4: Simplify right side
    12,087.36x = 117,657,890.84
  5. Step 5: Solve for x
    x = 117,657,890.84/12,087.36
  6. Step 6: Final answer
    x = 9,733.96

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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.