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Finding the Fourth Proportional to 9,783.60, 13,498.08 and 6,248.88

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Solution

The fourth proportional to 9,783.60, 13,498.08 and 6,248.88 is: 8,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783.60 : 13,498.08 = 6,248.88 : x
  2. Step 2: Convert to fraction form
    9,783.60/13,498.08 = 6,248.88/x
  3. Step 3: Cross multiply
    9,783.60x = 13,498.08 × 6,248.88
  4. Step 4: Simplify right side
    9,783.60x = 84,347,882.15
  5. Step 5: Solve for x
    x = 84,347,882.15/9,783.60
  6. Step 6: Final answer
    x = 8,621.35

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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.