Home / 13,938.09-20,907.20-4,710.57

Finding the Fourth Proportional to 13,938.09, 20,907.20 and 4,710.57

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Solution

The fourth proportional to 13,938.09, 20,907.20 and 4,710.57 is: 7,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.09 : 20,907.20 = 4,710.57 : x
  2. Step 2: Convert to fraction form
    13,938.09/20,907.20 = 4,710.57/x
  3. Step 3: Cross multiply
    13,938.09x = 20,907.20 × 4,710.57
  4. Step 4: Simplify right side
    13,938.09x = 98,484,805.55
  5. Step 5: Solve for x
    x = 98,484,805.55/13,938.09
  6. Step 6: Final answer
    x = 7,065.88

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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.