Home / 12,903.76-19,355.64-4,696.40

Finding the Fourth Proportional to 12,903.76, 19,355.64 and 4,696.40

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Solution

The fourth proportional to 12,903.76, 19,355.64 and 4,696.40 is: 7,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.76 : 19,355.64 = 4,696.40 : x
  2. Step 2: Convert to fraction form
    12,903.76/19,355.64 = 4,696.40/x
  3. Step 3: Cross multiply
    12,903.76x = 19,355.64 × 4,696.40
  4. Step 4: Simplify right side
    12,903.76x = 90,901,827.70
  5. Step 5: Solve for x
    x = 90,901,827.70/12,903.76
  6. Step 6: Final answer
    x = 7,044.60

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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.