Home / 13,736.78-20,622-9,060.71

Finding the Fourth Proportional to 13,736.78, 20,622 and 9,060.71

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Solution

The fourth proportional to 13,736.78, 20,622 and 9,060.71 is: 13,602.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.78 : 20,622 = 9,060.71 : x
  2. Step 2: Convert to fraction form
    13,736.78/20,622 = 9,060.71/x
  3. Step 3: Cross multiply
    13,736.78x = 20,622 × 9,060.71
  4. Step 4: Simplify right side
    13,736.78x = 186,849,858.51
  5. Step 5: Solve for x
    x = 186,849,858.51/13,736.78
  6. Step 6: Final answer
    x = 13,602.16

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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.