Home / 14,106.68-21,035.83-13,121.72

Finding the Fourth Proportional to 14,106.68, 21,035.83 and 13,121.72

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Solution

The fourth proportional to 14,106.68, 21,035.83 and 13,121.72 is: 19,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.68 : 21,035.83 = 13,121.72 : x
  2. Step 2: Convert to fraction form
    14,106.68/21,035.83 = 13,121.72/x
  3. Step 3: Cross multiply
    14,106.68x = 21,035.83 × 13,121.72
  4. Step 4: Simplify right side
    14,106.68x = 276,026,271.23
  5. Step 5: Solve for x
    x = 276,026,271.23/14,106.68
  6. Step 6: Final answer
    x = 19,567.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.