Home / 13,020.49-19,531.74-4,256.29

Finding the Fourth Proportional to 13,020.49, 19,531.74 and 4,256.29

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Solution

The fourth proportional to 13,020.49, 19,531.74 and 4,256.29 is: 6,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.49 : 19,531.74 = 4,256.29 : x
  2. Step 2: Convert to fraction form
    13,020.49/19,531.74 = 4,256.29/x
  3. Step 3: Cross multiply
    13,020.49x = 19,531.74 × 4,256.29
  4. Step 4: Simplify right side
    13,020.49x = 83,132,711.46
  5. Step 5: Solve for x
    x = 83,132,711.46/13,020.49
  6. Step 6: Final answer
    x = 6,384.76

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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.