Home / 14,329.60-21,371.90-12,586.07

Finding the Fourth Proportional to 14,329.60, 21,371.90 and 12,586.07

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Solution

The fourth proportional to 14,329.60, 21,371.90 and 12,586.07 is: 18,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,329.60 : 21,371.90 = 12,586.07 : x
  2. Step 2: Convert to fraction form
    14,329.60/21,371.90 = 12,586.07/x
  3. Step 3: Cross multiply
    14,329.60x = 21,371.90 × 12,586.07
  4. Step 4: Simplify right side
    14,329.60x = 268,988,219.93
  5. Step 5: Solve for x
    x = 268,988,219.93/14,329.60
  6. Step 6: Final answer
    x = 18,771.51

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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.