Home / 9,763.60-14,638.20-4,212.40

Finding the Fourth Proportional to 9,763.60, 14,638.20 and 4,212.40

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Solution

The fourth proportional to 9,763.60, 14,638.20 and 4,212.40 is: 6,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.60 : 14,638.20 = 4,212.40 : x
  2. Step 2: Convert to fraction form
    9,763.60/14,638.20 = 4,212.40/x
  3. Step 3: Cross multiply
    9,763.60x = 14,638.20 × 4,212.40
  4. Step 4: Simplify right side
    9,763.60x = 61,661,953.68
  5. Step 5: Solve for x
    x = 61,661,953.68/9,763.60
  6. Step 6: Final answer
    x = 6,315.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.