Home / 15,300.54-21,095.37-9,986.94

Finding the Fourth Proportional to 15,300.54, 21,095.37 and 9,986.94

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Solution

The fourth proportional to 15,300.54, 21,095.37 and 9,986.94 is: 13,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.54 : 21,095.37 = 9,986.94 : x
  2. Step 2: Convert to fraction form
    15,300.54/21,095.37 = 9,986.94/x
  3. Step 3: Cross multiply
    15,300.54x = 21,095.37 × 9,986.94
  4. Step 4: Simplify right side
    15,300.54x = 210,678,194.47
  5. Step 5: Solve for x
    x = 210,678,194.47/15,300.54
  6. Step 6: Final answer
    x = 13,769.33

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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.