Home / 14,988.15-20,684.16-8,274.06

Finding the Fourth Proportional to 14,988.15, 20,684.16 and 8,274.06

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Solution

The fourth proportional to 14,988.15, 20,684.16 and 8,274.06 is: 11,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.15 : 20,684.16 = 8,274.06 : x
  2. Step 2: Convert to fraction form
    14,988.15/20,684.16 = 8,274.06/x
  3. Step 3: Cross multiply
    14,988.15x = 20,684.16 × 8,274.06
  4. Step 4: Simplify right side
    14,988.15x = 171,141,980.89
  5. Step 5: Solve for x
    x = 171,141,980.89/14,988.15
  6. Step 6: Final answer
    x = 11,418.49

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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.