Home / 13,411.24-18,510.21-7,746.91

Finding the Fourth Proportional to 13,411.24, 18,510.21 and 7,746.91

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Solution

The fourth proportional to 13,411.24, 18,510.21 and 7,746.91 is: 10,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.24 : 18,510.21 = 7,746.91 : x
  2. Step 2: Convert to fraction form
    13,411.24/18,510.21 = 7,746.91/x
  3. Step 3: Cross multiply
    13,411.24x = 18,510.21 × 7,746.91
  4. Step 4: Simplify right side
    13,411.24x = 143,396,884.68
  5. Step 5: Solve for x
    x = 143,396,884.68/13,411.24
  6. Step 6: Final answer
    x = 10,692.29

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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.