Home / 14,406.81-19,876.23-8,436.30

Finding the Fourth Proportional to 14,406.81, 19,876.23 and 8,436.30

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Solution

The fourth proportional to 14,406.81, 19,876.23 and 8,436.30 is: 11,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.81 : 19,876.23 = 8,436.30 : x
  2. Step 2: Convert to fraction form
    14,406.81/19,876.23 = 8,436.30/x
  3. Step 3: Cross multiply
    14,406.81x = 19,876.23 × 8,436.30
  4. Step 4: Simplify right side
    14,406.81x = 167,681,839.15
  5. Step 5: Solve for x
    x = 167,681,839.15/14,406.81
  6. Step 6: Final answer
    x = 11,639.07

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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.