Home / 12,734.95-19,071.64-6,478.51

Finding the Fourth Proportional to 12,734.95, 19,071.64 and 6,478.51

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Solution

The fourth proportional to 12,734.95, 19,071.64 and 6,478.51 is: 9,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.95 : 19,071.64 = 6,478.51 : x
  2. Step 2: Convert to fraction form
    12,734.95/19,071.64 = 6,478.51/x
  3. Step 3: Cross multiply
    12,734.95x = 19,071.64 × 6,478.51
  4. Step 4: Simplify right side
    12,734.95x = 123,555,810.46
  5. Step 5: Solve for x
    x = 123,555,810.46/12,734.95
  6. Step 6: Final answer
    x = 9,702.10

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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.