Home / 10,721.04-14,790.09-6,945.47

Finding the Fourth Proportional to 10,721.04, 14,790.09 and 6,945.47

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Solution

The fourth proportional to 10,721.04, 14,790.09 and 6,945.47 is: 9,581.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.04 : 14,790.09 = 6,945.47 : x
  2. Step 2: Convert to fraction form
    10,721.04/14,790.09 = 6,945.47/x
  3. Step 3: Cross multiply
    10,721.04x = 14,790.09 × 6,945.47
  4. Step 4: Simplify right side
    10,721.04x = 102,724,126.39
  5. Step 5: Solve for x
    x = 102,724,126.39/10,721.04
  6. Step 6: Final answer
    x = 9,581.54

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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.