Home / 13,526.04-18,662.73-7,857.43

Finding the Fourth Proportional to 13,526.04, 18,662.73 and 7,857.43

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Solution

The fourth proportional to 13,526.04, 18,662.73 and 7,857.43 is: 10,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.04 : 18,662.73 = 7,857.43 : x
  2. Step 2: Convert to fraction form
    13,526.04/18,662.73 = 7,857.43/x
  3. Step 3: Cross multiply
    13,526.04x = 18,662.73 × 7,857.43
  4. Step 4: Simplify right side
    13,526.04x = 146,641,094.58
  5. Step 5: Solve for x
    x = 146,641,094.58/13,526.04
  6. Step 6: Final answer
    x = 10,841.39

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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.