Home / 11,551.19-15,913.00-10,988.38

Finding the Fourth Proportional to 11,551.19, 15,913.00 and 10,988.38

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Solution

The fourth proportional to 11,551.19, 15,913.00 and 10,988.38 is: 15,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.19 : 15,913.00 = 10,988.38 : x
  2. Step 2: Convert to fraction form
    11,551.19/15,913.00 = 10,988.38/x
  3. Step 3: Cross multiply
    11,551.19x = 15,913.00 × 10,988.38
  4. Step 4: Simplify right side
    11,551.19x = 174,858,023.69
  5. Step 5: Solve for x
    x = 174,858,023.69/11,551.19
  6. Step 6: Final answer
    x = 15,137.67

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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.