Home / 12,967.71-19,356.87-11,130.63

Finding the Fourth Proportional to 12,967.71, 19,356.87 and 11,130.63

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Solution

The fourth proportional to 12,967.71, 19,356.87 and 11,130.63 is: 16,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967.71 : 19,356.87 = 11,130.63 : x
  2. Step 2: Convert to fraction form
    12,967.71/19,356.87 = 11,130.63/x
  3. Step 3: Cross multiply
    12,967.71x = 19,356.87 × 11,130.63
  4. Step 4: Simplify right side
    12,967.71x = 215,454,157.93
  5. Step 5: Solve for x
    x = 215,454,157.93/12,967.71
  6. Step 6: Final answer
    x = 16,614.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.