Home / 13,919.04-20,890.80-7,349.64

Finding the Fourth Proportional to 13,919.04, 20,890.80 and 7,349.64

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Solution

The fourth proportional to 13,919.04, 20,890.80 and 7,349.64 is: 11,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.04 : 20,890.80 = 7,349.64 : x
  2. Step 2: Convert to fraction form
    13,919.04/20,890.80 = 7,349.64/x
  3. Step 3: Cross multiply
    13,919.04x = 20,890.80 × 7,349.64
  4. Step 4: Simplify right side
    13,919.04x = 153,539,859.31
  5. Step 5: Solve for x
    x = 153,539,859.31/13,919.04
  6. Step 6: Final answer
    x = 11,030.92

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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.