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Finding the Fourth Proportional to 8,783.36, 13,114.88 and 7,484.16

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Solution

The fourth proportional to 8,783.36, 13,114.88 and 7,484.16 is: 11,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.36 : 13,114.88 = 7,484.16 : x
  2. Step 2: Convert to fraction form
    8,783.36/13,114.88 = 7,484.16/x
  3. Step 3: Cross multiply
    8,783.36x = 13,114.88 × 7,484.16
  4. Step 4: Simplify right side
    8,783.36x = 98,153,860.30
  5. Step 5: Solve for x
    x = 98,153,860.30/8,783.36
  6. Step 6: Final answer
    x = 11,174.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.