Home / 14,006.21-19,328.69-7,718.81

Finding the Fourth Proportional to 14,006.21, 19,328.69 and 7,718.81

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Solution

The fourth proportional to 14,006.21, 19,328.69 and 7,718.81 is: 10,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.21 : 19,328.69 = 7,718.81 : x
  2. Step 2: Convert to fraction form
    14,006.21/19,328.69 = 7,718.81/x
  3. Step 3: Cross multiply
    14,006.21x = 19,328.69 × 7,718.81
  4. Step 4: Simplify right side
    14,006.21x = 149,194,408.31
  5. Step 5: Solve for x
    x = 149,194,408.31/14,006.21
  6. Step 6: Final answer
    x = 10,652.02

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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.