Home / 19,548.21-26,989.47-12,109.17

Finding the Fourth Proportional to 19,548.21, 26,989.47 and 12,109.17

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Solution

The fourth proportional to 19,548.21, 26,989.47 and 12,109.17 is: 16,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,548.21 : 26,989.47 = 12,109.17 : x
  2. Step 2: Convert to fraction form
    19,548.21/26,989.47 = 12,109.17/x
  3. Step 3: Cross multiply
    19,548.21x = 26,989.47 × 12,109.17
  4. Step 4: Simplify right side
    19,548.21x = 326,820,080.44
  5. Step 5: Solve for x
    x = 326,820,080.44/19,548.21
  6. Step 6: Final answer
    x = 16,718.67

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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.