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Finding the Fourth Proportional to 9,807.64, 14,711.60 and 5,415.52

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Solution

The fourth proportional to 9,807.64, 14,711.60 and 5,415.52 is: 8,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,807.64 : 14,711.60 = 5,415.52 : x
  2. Step 2: Convert to fraction form
    9,807.64/14,711.60 = 5,415.52/x
  3. Step 3: Cross multiply
    9,807.64x = 14,711.60 × 5,415.52
  4. Step 4: Simplify right side
    9,807.64x = 79,670,964.03
  5. Step 5: Solve for x
    x = 79,670,964.03/9,807.64
  6. Step 6: Final answer
    x = 8,123.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.