Home / 7,456.14-10,271.09-6,390.48

Finding the Fourth Proportional to 7,456.14, 10,271.09 and 6,390.48

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Solution

The fourth proportional to 7,456.14, 10,271.09 and 6,390.48 is: 8,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.14 : 10,271.09 = 6,390.48 : x
  2. Step 2: Convert to fraction form
    7,456.14/10,271.09 = 6,390.48/x
  3. Step 3: Cross multiply
    7,456.14x = 10,271.09 × 6,390.48
  4. Step 4: Simplify right side
    7,456.14x = 65,637,179.25
  5. Step 5: Solve for x
    x = 65,637,179.25/7,456.14
  6. Step 6: Final answer
    x = 8,803.11

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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.