Home / 12,708.63-19,070.42-5,312.52

Finding the Fourth Proportional to 12,708.63, 19,070.42 and 5,312.52

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Solution

The fourth proportional to 12,708.63, 19,070.42 and 5,312.52 is: 7,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.63 : 19,070.42 = 5,312.52 : x
  2. Step 2: Convert to fraction form
    12,708.63/19,070.42 = 5,312.52/x
  3. Step 3: Cross multiply
    12,708.63x = 19,070.42 × 5,312.52
  4. Step 4: Simplify right side
    12,708.63x = 101,311,961.10
  5. Step 5: Solve for x
    x = 101,311,961.10/12,708.63
  6. Step 6: Final answer
    x = 7,971.90

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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.