Home / 13,975.47-19,285.29-8,005.77

Finding the Fourth Proportional to 13,975.47, 19,285.29 and 8,005.77

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Solution

The fourth proportional to 13,975.47, 19,285.29 and 8,005.77 is: 11,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.47 : 19,285.29 = 8,005.77 : x
  2. Step 2: Convert to fraction form
    13,975.47/19,285.29 = 8,005.77/x
  3. Step 3: Cross multiply
    13,975.47x = 19,285.29 × 8,005.77
  4. Step 4: Simplify right side
    13,975.47x = 154,393,596.12
  5. Step 5: Solve for x
    x = 154,393,596.12/13,975.47
  6. Step 6: Final answer
    x = 11,047.47

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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.