Home / 10,500.72-14,498.40-6,971.28

Finding the Fourth Proportional to 10,500.72, 14,498.40 and 6,971.28

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Solution

The fourth proportional to 10,500.72, 14,498.40 and 6,971.28 is: 9,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.72 : 14,498.40 = 6,971.28 : x
  2. Step 2: Convert to fraction form
    10,500.72/14,498.40 = 6,971.28/x
  3. Step 3: Cross multiply
    10,500.72x = 14,498.40 × 6,971.28
  4. Step 4: Simplify right side
    10,500.72x = 101,072,405.95
  5. Step 5: Solve for x
    x = 101,072,405.95/10,500.72
  6. Step 6: Final answer
    x = 9,625.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.