Home / 8,925.76-12,309.81-6,424.33

Finding the Fourth Proportional to 8,925.76, 12,309.81 and 6,424.33

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Solution

The fourth proportional to 8,925.76, 12,309.81 and 6,424.33 is: 8,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.76 : 12,309.81 = 6,424.33 : x
  2. Step 2: Convert to fraction form
    8,925.76/12,309.81 = 6,424.33/x
  3. Step 3: Cross multiply
    8,925.76x = 12,309.81 × 6,424.33
  4. Step 4: Simplify right side
    8,925.76x = 79,082,281.68
  5. Step 5: Solve for x
    x = 79,082,281.68/8,925.76
  6. Step 6: Final answer
    x = 8,860.01

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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.