Home / 13,117.28-19,648.17-10,607.69

Finding the Fourth Proportional to 13,117.28, 19,648.17 and 10,607.69

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Solution

The fourth proportional to 13,117.28, 19,648.17 and 10,607.69 is: 15,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.28 : 19,648.17 = 10,607.69 : x
  2. Step 2: Convert to fraction form
    13,117.28/19,648.17 = 10,607.69/x
  3. Step 3: Cross multiply
    13,117.28x = 19,648.17 × 10,607.69
  4. Step 4: Simplify right side
    13,117.28x = 208,421,745.55
  5. Step 5: Solve for x
    x = 208,421,745.55/13,117.28
  6. Step 6: Final answer
    x = 15,889.10

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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.