Home / 13,511.34-18,643.23-7,846.74

Finding the Fourth Proportional to 13,511.34, 18,643.23 and 7,846.74

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Solution

The fourth proportional to 13,511.34, 18,643.23 and 7,846.74 is: 10,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.34 : 18,643.23 = 7,846.74 : x
  2. Step 2: Convert to fraction form
    13,511.34/18,643.23 = 7,846.74/x
  3. Step 3: Cross multiply
    13,511.34x = 18,643.23 × 7,846.74
  4. Step 4: Simplify right side
    13,511.34x = 146,288,578.57
  5. Step 5: Solve for x
    x = 146,288,578.57/13,511.34
  6. Step 6: Final answer
    x = 10,827.10

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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.