Home / 13,175.40-19,763.10-12,810.90

Finding the Fourth Proportional to 13,175.40, 19,763.10 and 12,810.90

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Solution

The fourth proportional to 13,175.40, 19,763.10 and 12,810.90 is: 19,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.40 : 19,763.10 = 12,810.90 : x
  2. Step 2: Convert to fraction form
    13,175.40/19,763.10 = 12,810.90/x
  3. Step 3: Cross multiply
    13,175.40x = 19,763.10 × 12,810.90
  4. Step 4: Simplify right side
    13,175.40x = 253,183,097.79
  5. Step 5: Solve for x
    x = 253,183,097.79/13,175.40
  6. Step 6: Final answer
    x = 19,216.35

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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.