Home / 13,557.53-18,709.48-7,895.58

Finding the Fourth Proportional to 13,557.53, 18,709.48 and 7,895.58

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Solution

The fourth proportional to 13,557.53, 18,709.48 and 7,895.58 is: 10,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.53 : 18,709.48 = 7,895.58 : x
  2. Step 2: Convert to fraction form
    13,557.53/18,709.48 = 7,895.58/x
  3. Step 3: Cross multiply
    13,557.53x = 18,709.48 × 7,895.58
  4. Step 4: Simplify right side
    13,557.53x = 147,722,135.81
  5. Step 5: Solve for x
    x = 147,722,135.81/13,557.53
  6. Step 6: Final answer
    x = 10,895.95

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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.