Home / 18,409.99-25,403.65-10,342.53

Finding the Fourth Proportional to 18,409.99, 25,403.65 and 10,342.53

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Solution

The fourth proportional to 18,409.99, 25,403.65 and 10,342.53 is: 14,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.99 : 25,403.65 = 10,342.53 : x
  2. Step 2: Convert to fraction form
    18,409.99/25,403.65 = 10,342.53/x
  3. Step 3: Cross multiply
    18,409.99x = 25,403.65 × 10,342.53
  4. Step 4: Simplify right side
    18,409.99x = 262,737,944.02
  5. Step 5: Solve for x
    x = 262,737,944.02/18,409.99
  6. Step 6: Final answer
    x = 14,271.49

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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.