Home / 12,495.51-17,249.36-9,511.47

Finding the Fourth Proportional to 12,495.51, 17,249.36 and 9,511.47

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Solution

The fourth proportional to 12,495.51, 17,249.36 and 9,511.47 is: 13,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.51 : 17,249.36 = 9,511.47 : x
  2. Step 2: Convert to fraction form
    12,495.51/17,249.36 = 9,511.47/x
  3. Step 3: Cross multiply
    12,495.51x = 17,249.36 × 9,511.47
  4. Step 4: Simplify right side
    12,495.51x = 164,066,722.60
  5. Step 5: Solve for x
    x = 164,066,722.60/12,495.51
  6. Step 6: Final answer
    x = 13,130.05

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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.