Home / 13,979.07-19,285.65-8,007.57

Finding the Fourth Proportional to 13,979.07, 19,285.65 and 8,007.57

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Solution

The fourth proportional to 13,979.07, 19,285.65 and 8,007.57 is: 11,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.07 : 19,285.65 = 8,007.57 : x
  2. Step 2: Convert to fraction form
    13,979.07/19,285.65 = 8,007.57/x
  3. Step 3: Cross multiply
    13,979.07x = 19,285.65 × 8,007.57
  4. Step 4: Simplify right side
    13,979.07x = 154,431,192.37
  5. Step 5: Solve for x
    x = 154,431,192.37/13,979.07
  6. Step 6: Final answer
    x = 11,047.32

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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.