Home / 14,688.74-20,255.67-13,068.61

Finding the Fourth Proportional to 14,688.74, 20,255.67 and 13,068.61

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Solution

The fourth proportional to 14,688.74, 20,255.67 and 13,068.61 is: 18,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.74 : 20,255.67 = 13,068.61 : x
  2. Step 2: Convert to fraction form
    14,688.74/20,255.67 = 13,068.61/x
  3. Step 3: Cross multiply
    14,688.74x = 20,255.67 × 13,068.61
  4. Step 4: Simplify right side
    14,688.74x = 264,713,400.88
  5. Step 5: Solve for x
    x = 264,713,400.88/14,688.74
  6. Step 6: Final answer
    x = 18,021.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.