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Finding the Fourth Proportional to 8,783.16, 12,125.78 and 5,807.63

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Solution

The fourth proportional to 8,783.16, 12,125.78 and 5,807.63 is: 8,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.16 : 12,125.78 = 5,807.63 : x
  2. Step 2: Convert to fraction form
    8,783.16/12,125.78 = 5,807.63/x
  3. Step 3: Cross multiply
    8,783.16x = 12,125.78 × 5,807.63
  4. Step 4: Simplify right side
    8,783.16x = 70,421,954.03
  5. Step 5: Solve for x
    x = 70,421,954.03/8,783.16
  6. Step 6: Final answer
    x = 8,017.84

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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.