Home / 19,131.51-28,696.47-6,654.36

Finding the Fourth Proportional to 19,131.51, 28,696.47 and 6,654.36

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Solution

The fourth proportional to 19,131.51, 28,696.47 and 6,654.36 is: 9,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.51 : 28,696.47 = 6,654.36 : x
  2. Step 2: Convert to fraction form
    19,131.51/28,696.47 = 6,654.36/x
  3. Step 3: Cross multiply
    19,131.51x = 28,696.47 × 6,654.36
  4. Step 4: Simplify right side
    19,131.51x = 190,956,642.11
  5. Step 5: Solve for x
    x = 190,956,642.11/19,131.51
  6. Step 6: Final answer
    x = 9,981.26

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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.