Home / 12,639.16-18,955.50-6,707.98

Finding the Fourth Proportional to 12,639.16, 18,955.50 and 6,707.98

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Solution

The fourth proportional to 12,639.16, 18,955.50 and 6,707.98 is: 10,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.16 : 18,955.50 = 6,707.98 : x
  2. Step 2: Convert to fraction form
    12,639.16/18,955.50 = 6,707.98/x
  3. Step 3: Cross multiply
    12,639.16x = 18,955.50 × 6,707.98
  4. Step 4: Simplify right side
    12,639.16x = 127,153,114.89
  5. Step 5: Solve for x
    x = 127,153,114.89/12,639.16
  6. Step 6: Final answer
    x = 10,060.25

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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.