Home / 13,929.81-20,901.89-9,253.05

Finding the Fourth Proportional to 13,929.81, 20,901.89 and 9,253.05

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Solution

The fourth proportional to 13,929.81, 20,901.89 and 9,253.05 is: 13,884.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.81 : 20,901.89 = 9,253.05 : x
  2. Step 2: Convert to fraction form
    13,929.81/20,901.89 = 9,253.05/x
  3. Step 3: Cross multiply
    13,929.81x = 20,901.89 × 9,253.05
  4. Step 4: Simplify right side
    13,929.81x = 193,406,233.26
  5. Step 5: Solve for x
    x = 193,406,233.26/13,929.81
  6. Step 6: Final answer
    x = 13,884.34

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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.