Home / 12,887.26-17,794.47-9,898.36

Finding the Fourth Proportional to 12,887.26, 17,794.47 and 9,898.36

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Solution

The fourth proportional to 12,887.26, 17,794.47 and 9,898.36 is: 13,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.26 : 17,794.47 = 9,898.36 : x
  2. Step 2: Convert to fraction form
    12,887.26/17,794.47 = 9,898.36/x
  3. Step 3: Cross multiply
    12,887.26x = 17,794.47 × 9,898.36
  4. Step 4: Simplify right side
    12,887.26x = 176,136,070.07
  5. Step 5: Solve for x
    x = 176,136,070.07/12,887.26
  6. Step 6: Final answer
    x = 13,667.46

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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.