Home / 13,943.75-20,916.43-5,064.32

Finding the Fourth Proportional to 13,943.75, 20,916.43 and 5,064.32

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Solution

The fourth proportional to 13,943.75, 20,916.43 and 5,064.32 is: 7,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.75 : 20,916.43 = 5,064.32 : x
  2. Step 2: Convert to fraction form
    13,943.75/20,916.43 = 5,064.32/x
  3. Step 3: Cross multiply
    13,943.75x = 20,916.43 × 5,064.32
  4. Step 4: Simplify right side
    13,943.75x = 105,927,534.41
  5. Step 5: Solve for x
    x = 105,927,534.41/13,943.75
  6. Step 6: Final answer
    x = 7,596.78

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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.