Home / 13,984.61-20,970.09-4,975.73

Finding the Fourth Proportional to 13,984.61, 20,970.09 and 4,975.73

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Solution

The fourth proportional to 13,984.61, 20,970.09 and 4,975.73 is: 7,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.61 : 20,970.09 = 4,975.73 : x
  2. Step 2: Convert to fraction form
    13,984.61/20,970.09 = 4,975.73/x
  3. Step 3: Cross multiply
    13,984.61x = 20,970.09 × 4,975.73
  4. Step 4: Simplify right side
    13,984.61x = 104,341,401.07
  5. Step 5: Solve for x
    x = 104,341,401.07/13,984.61
  6. Step 6: Final answer
    x = 7,461.16

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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.