Home / 19,440.36-26,803.18-12,715.34

Finding the Fourth Proportional to 19,440.36, 26,803.18 and 12,715.34

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Solution

The fourth proportional to 19,440.36, 26,803.18 and 12,715.34 is: 17,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.36 : 26,803.18 = 12,715.34 : x
  2. Step 2: Convert to fraction form
    19,440.36/26,803.18 = 12,715.34/x
  3. Step 3: Cross multiply
    19,440.36x = 26,803.18 × 12,715.34
  4. Step 4: Simplify right side
    19,440.36x = 340,811,546.78
  5. Step 5: Solve for x
    x = 340,811,546.78/19,440.36
  6. Step 6: Final answer
    x = 17,531.13

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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.