Home / 14,278.91-21,316.14-12,411.07

Finding the Fourth Proportional to 14,278.91, 21,316.14 and 12,411.07

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Solution

The fourth proportional to 14,278.91, 21,316.14 and 12,411.07 is: 18,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.91 : 21,316.14 = 12,411.07 : x
  2. Step 2: Convert to fraction form
    14,278.91/21,316.14 = 12,411.07/x
  3. Step 3: Cross multiply
    14,278.91x = 21,316.14 × 12,411.07
  4. Step 4: Simplify right side
    14,278.91x = 264,556,052.38
  5. Step 5: Solve for x
    x = 264,556,052.38/14,278.91
  6. Step 6: Final answer
    x = 18,527.75

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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.