Home / 12,688.50-19,028.57-4,368.33

Finding the Fourth Proportional to 12,688.50, 19,028.57 and 4,368.33

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Solution

The fourth proportional to 12,688.50, 19,028.57 and 4,368.33 is: 6,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.50 : 19,028.57 = 4,368.33 : x
  2. Step 2: Convert to fraction form
    12,688.50/19,028.57 = 4,368.33/x
  3. Step 3: Cross multiply
    12,688.50x = 19,028.57 × 4,368.33
  4. Step 4: Simplify right side
    12,688.50x = 83,123,075.92
  5. Step 5: Solve for x
    x = 83,123,075.92/12,688.50
  6. Step 6: Final answer
    x = 6,551.06

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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.