Home / 15,437.08-21,293.58-9,145

Finding the Fourth Proportional to 15,437.08, 21,293.58 and 9,145

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Solution

The fourth proportional to 15,437.08, 21,293.58 and 9,145 is: 12,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.08 : 21,293.58 = 9,145 : x
  2. Step 2: Convert to fraction form
    15,437.08/21,293.58 = 9,145/x
  3. Step 3: Cross multiply
    15,437.08x = 21,293.58 × 9,145
  4. Step 4: Simplify right side
    15,437.08x = 194,729,789.10
  5. Step 5: Solve for x
    x = 194,729,789.10/15,437.08
  6. Step 6: Final answer
    x = 12,614.42

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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.