Home / 18,971.49-28,460.88-7,283.79

Finding the Fourth Proportional to 18,971.49, 28,460.88 and 7,283.79

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Solution

The fourth proportional to 18,971.49, 28,460.88 and 7,283.79 is: 10,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.49 : 28,460.88 = 7,283.79 : x
  2. Step 2: Convert to fraction form
    18,971.49/28,460.88 = 7,283.79/x
  3. Step 3: Cross multiply
    18,971.49x = 28,460.88 × 7,283.79
  4. Step 4: Simplify right side
    18,971.49x = 207,303,073.14
  5. Step 5: Solve for x
    x = 207,303,073.14/18,971.49
  6. Step 6: Final answer
    x = 10,927.08

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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.