Home / 13,566.69-18,721.53-7,901.75

Finding the Fourth Proportional to 13,566.69, 18,721.53 and 7,901.75

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Solution

The fourth proportional to 13,566.69, 18,721.53 and 7,901.75 is: 10,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.69 : 18,721.53 = 7,901.75 : x
  2. Step 2: Convert to fraction form
    13,566.69/18,721.53 = 7,901.75/x
  3. Step 3: Cross multiply
    13,566.69x = 18,721.53 × 7,901.75
  4. Step 4: Simplify right side
    13,566.69x = 147,932,896.48
  5. Step 5: Solve for x
    x = 147,932,896.48/13,566.69
  6. Step 6: Final answer
    x = 10,904.13

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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.