Home / 7,738.41-10,666.89-6,477.24

Finding the Fourth Proportional to 7,738.41, 10,666.89 and 6,477.24

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Solution

The fourth proportional to 7,738.41, 10,666.89 and 6,477.24 is: 8,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.41 : 10,666.89 = 6,477.24 : x
  2. Step 2: Convert to fraction form
    7,738.41/10,666.89 = 6,477.24/x
  3. Step 3: Cross multiply
    7,738.41x = 10,666.89 × 6,477.24
  4. Step 4: Simplify right side
    7,738.41x = 69,091,953.25
  5. Step 5: Solve for x
    x = 69,091,953.25/7,738.41
  6. Step 6: Final answer
    x = 8,928.45

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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.