Home / 14,709.60-22,078.80-7,322.40

Finding the Fourth Proportional to 14,709.60, 22,078.80 and 7,322.40

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Solution

The fourth proportional to 14,709.60, 22,078.80 and 7,322.40 is: 10,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.60 : 22,078.80 = 7,322.40 : x
  2. Step 2: Convert to fraction form
    14,709.60/22,078.80 = 7,322.40/x
  3. Step 3: Cross multiply
    14,709.60x = 22,078.80 × 7,322.40
  4. Step 4: Simplify right side
    14,709.60x = 161,669,805.12
  5. Step 5: Solve for x
    x = 161,669,805.12/14,709.60
  6. Step 6: Final answer
    x = 10,990.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.