Home / 14,127.18-21,275.37-12,866.05

Finding the Fourth Proportional to 14,127.18, 21,275.37 and 12,866.05

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Solution

The fourth proportional to 14,127.18, 21,275.37 and 12,866.05 is: 19,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.18 : 21,275.37 = 12,866.05 : x
  2. Step 2: Convert to fraction form
    14,127.18/21,275.37 = 12,866.05/x
  3. Step 3: Cross multiply
    14,127.18x = 21,275.37 × 12,866.05
  4. Step 4: Simplify right side
    14,127.18x = 273,729,835.65
  5. Step 5: Solve for x
    x = 273,729,835.65/14,127.18
  6. Step 6: Final answer
    x = 19,376.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.