Home / 18,663.86-25,756.13-10,280.36

Finding the Fourth Proportional to 18,663.86, 25,756.13 and 10,280.36

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Solution

The fourth proportional to 18,663.86, 25,756.13 and 10,280.36 is: 14,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.86 : 25,756.13 = 10,280.36 : x
  2. Step 2: Convert to fraction form
    18,663.86/25,756.13 = 10,280.36/x
  3. Step 3: Cross multiply
    18,663.86x = 25,756.13 × 10,280.36
  4. Step 4: Simplify right side
    18,663.86x = 264,782,237.21
  5. Step 5: Solve for x
    x = 264,782,237.21/18,663.86
  6. Step 6: Final answer
    x = 14,186.90

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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.