Home / 14,870.89-20,511.07-12,629.22

Finding the Fourth Proportional to 14,870.89, 20,511.07 and 12,629.22

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Solution

The fourth proportional to 14,870.89, 20,511.07 and 12,629.22 is: 17,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.89 : 20,511.07 = 12,629.22 : x
  2. Step 2: Convert to fraction form
    14,870.89/20,511.07 = 12,629.22/x
  3. Step 3: Cross multiply
    14,870.89x = 20,511.07 × 12,629.22
  4. Step 4: Simplify right side
    14,870.89x = 259,038,815.47
  5. Step 5: Solve for x
    x = 259,038,815.47/14,870.89
  6. Step 6: Final answer
    x = 17,419.19

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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.