Home / 12,281.08-18,427.06-6,436.30

Finding the Fourth Proportional to 12,281.08, 18,427.06 and 6,436.30

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Solution

The fourth proportional to 12,281.08, 18,427.06 and 6,436.30 is: 9,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.08 : 18,427.06 = 6,436.30 : x
  2. Step 2: Convert to fraction form
    12,281.08/18,427.06 = 6,436.30/x
  3. Step 3: Cross multiply
    12,281.08x = 18,427.06 × 6,436.30
  4. Step 4: Simplify right side
    12,281.08x = 118,602,086.28
  5. Step 5: Solve for x
    x = 118,602,086.28/12,281.08
  6. Step 6: Final answer
    x = 9,657.30

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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.