Home / 13,916.94-19,205.28-7,629.18

Finding the Fourth Proportional to 13,916.94, 19,205.28 and 7,629.18

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Solution

The fourth proportional to 13,916.94, 19,205.28 and 7,629.18 is: 10,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.94 : 19,205.28 = 7,629.18 : x
  2. Step 2: Convert to fraction form
    13,916.94/19,205.28 = 7,629.18/x
  3. Step 3: Cross multiply
    13,916.94x = 19,205.28 × 7,629.18
  4. Step 4: Simplify right side
    13,916.94x = 146,520,538.07
  5. Step 5: Solve for x
    x = 146,520,538.07/13,916.94
  6. Step 6: Final answer
    x = 10,528.22

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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.