Home / 12,704.18-19,038.61-10,509.44

Finding the Fourth Proportional to 12,704.18, 19,038.61 and 10,509.44

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Solution

The fourth proportional to 12,704.18, 19,038.61 and 10,509.44 is: 15,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.18 : 19,038.61 = 10,509.44 : x
  2. Step 2: Convert to fraction form
    12,704.18/19,038.61 = 10,509.44/x
  3. Step 3: Cross multiply
    12,704.18x = 19,038.61 × 10,509.44
  4. Step 4: Simplify right side
    12,704.18x = 200,085,047.42
  5. Step 5: Solve for x
    x = 200,085,047.42/12,704.18
  6. Step 6: Final answer
    x = 15,749.55

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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.