Home / 7,428.48-10,240.44-5,186.94

Finding the Fourth Proportional to 7,428.48, 10,240.44 and 5,186.94

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Solution

The fourth proportional to 7,428.48, 10,240.44 and 5,186.94 is: 7,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.48 : 10,240.44 = 5,186.94 : x
  2. Step 2: Convert to fraction form
    7,428.48/10,240.44 = 5,186.94/x
  3. Step 3: Cross multiply
    7,428.48x = 10,240.44 × 5,186.94
  4. Step 4: Simplify right side
    7,428.48x = 53,116,547.85
  5. Step 5: Solve for x
    x = 53,116,547.85/7,428.48
  6. Step 6: Final answer
    x = 7,150.39

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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.