Home / 14,783.59-20,400.54-8,409.32

Finding the Fourth Proportional to 14,783.59, 20,400.54 and 8,409.32

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Solution

The fourth proportional to 14,783.59, 20,400.54 and 8,409.32 is: 11,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.59 : 20,400.54 = 8,409.32 : x
  2. Step 2: Convert to fraction form
    14,783.59/20,400.54 = 8,409.32/x
  3. Step 3: Cross multiply
    14,783.59x = 20,400.54 × 8,409.32
  4. Step 4: Simplify right side
    14,783.59x = 171,554,669.03
  5. Step 5: Solve for x
    x = 171,554,669.03/14,783.59
  6. Step 6: Final answer
    x = 11,604.40

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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.