Home / 7,455.89-10,270.74-6,390.23

Finding the Fourth Proportional to 7,455.89, 10,270.74 and 6,390.23

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Solution

The fourth proportional to 7,455.89, 10,270.74 and 6,390.23 is: 8,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.89 : 10,270.74 = 6,390.23 : x
  2. Step 2: Convert to fraction form
    7,455.89/10,270.74 = 6,390.23/x
  3. Step 3: Cross multiply
    7,455.89x = 10,270.74 × 6,390.23
  4. Step 4: Simplify right side
    7,455.89x = 65,632,402.00
  5. Step 5: Solve for x
    x = 65,632,402.00/7,455.89
  6. Step 6: Final answer
    x = 8,802.76

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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.