Home / 14,291.08-21,332.45-13,121.05

Finding the Fourth Proportional to 14,291.08, 21,332.45 and 13,121.05

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Solution

The fourth proportional to 14,291.08, 21,332.45 and 13,121.05 is: 19,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.08 : 21,332.45 = 13,121.05 : x
  2. Step 2: Convert to fraction form
    14,291.08/21,332.45 = 13,121.05/x
  3. Step 3: Cross multiply
    14,291.08x = 21,332.45 × 13,121.05
  4. Step 4: Simplify right side
    14,291.08x = 279,904,143.07
  5. Step 5: Solve for x
    x = 279,904,143.07/14,291.08
  6. Step 6: Final answer
    x = 19,585.93

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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.