Home / 14,299.81-21,455.60-6,290.46

Finding the Fourth Proportional to 14,299.81, 21,455.60 and 6,290.46

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Solution

The fourth proportional to 14,299.81, 21,455.60 and 6,290.46 is: 9,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,299.81 : 21,455.60 = 6,290.46 : x
  2. Step 2: Convert to fraction form
    14,299.81/21,455.60 = 6,290.46/x
  3. Step 3: Cross multiply
    14,299.81x = 21,455.60 × 6,290.46
  4. Step 4: Simplify right side
    14,299.81x = 134,965,597.51
  5. Step 5: Solve for x
    x = 134,965,597.51/14,299.81
  6. Step 6: Final answer
    x = 9,438.28

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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.