Home / 10,553.14-14,629.93-9,991.35

Finding the Fourth Proportional to 10,553.14, 14,629.93 and 9,991.35

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Solution

The fourth proportional to 10,553.14, 14,629.93 and 9,991.35 is: 13,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.14 : 14,629.93 = 9,991.35 : x
  2. Step 2: Convert to fraction form
    10,553.14/14,629.93 = 9,991.35/x
  3. Step 3: Cross multiply
    10,553.14x = 14,629.93 × 9,991.35
  4. Step 4: Simplify right side
    10,553.14x = 146,172,751.11
  5. Step 5: Solve for x
    x = 146,172,751.11/10,553.14
  6. Step 6: Final answer
    x = 13,851.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.