Home / 12,011.52-18,022.47-6,458.37

Finding the Fourth Proportional to 12,011.52, 18,022.47 and 6,458.37

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Solution

The fourth proportional to 12,011.52, 18,022.47 and 6,458.37 is: 9,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.52 : 18,022.47 = 6,458.37 : x
  2. Step 2: Convert to fraction form
    12,011.52/18,022.47 = 6,458.37/x
  3. Step 3: Cross multiply
    12,011.52x = 18,022.47 × 6,458.37
  4. Step 4: Simplify right side
    12,011.52x = 116,395,779.57
  5. Step 5: Solve for x
    x = 116,395,779.57/12,011.52
  6. Step 6: Final answer
    x = 9,690.35

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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.