Home / 14,941.88-20,612.86-9,638.40

Finding the Fourth Proportional to 14,941.88, 20,612.86 and 9,638.40

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Solution

The fourth proportional to 14,941.88, 20,612.86 and 9,638.40 is: 13,296.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,941.88 : 20,612.86 = 9,638.40 : x
  2. Step 2: Convert to fraction form
    14,941.88/20,612.86 = 9,638.40/x
  3. Step 3: Cross multiply
    14,941.88x = 20,612.86 × 9,638.40
  4. Step 4: Simplify right side
    14,941.88x = 198,675,013.92
  5. Step 5: Solve for x
    x = 198,675,013.92/14,941.88
  6. Step 6: Final answer
    x = 13,296.52

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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.