Home / 14,653.24-20,221.40-7,938.84

Finding the Fourth Proportional to 14,653.24, 20,221.40 and 7,938.84

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Solution

The fourth proportional to 14,653.24, 20,221.40 and 7,938.84 is: 10,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.24 : 20,221.40 = 7,938.84 : x
  2. Step 2: Convert to fraction form
    14,653.24/20,221.40 = 7,938.84/x
  3. Step 3: Cross multiply
    14,653.24x = 20,221.40 × 7,938.84
  4. Step 4: Simplify right side
    14,653.24x = 160,534,459.18
  5. Step 5: Solve for x
    x = 160,534,459.18/14,653.24
  6. Step 6: Final answer
    x = 10,955.56

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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.