Home / 12,975.48-19,448.64-5,583.42

Finding the Fourth Proportional to 12,975.48, 19,448.64 and 5,583.42

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Solution

The fourth proportional to 12,975.48, 19,448.64 and 5,583.42 is: 8,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.48 : 19,448.64 = 5,583.42 : x
  2. Step 2: Convert to fraction form
    12,975.48/19,448.64 = 5,583.42/x
  3. Step 3: Cross multiply
    12,975.48x = 19,448.64 × 5,583.42
  4. Step 4: Simplify right side
    12,975.48x = 108,589,925.55
  5. Step 5: Solve for x
    x = 108,589,925.55/12,975.48
  6. Step 6: Final answer
    x = 8,368.86

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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.