Home / 21,309.34-31,962.86-6,518.26

Finding the Fourth Proportional to 21,309.34, 31,962.86 and 6,518.26

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Solution

The fourth proportional to 21,309.34, 31,962.86 and 6,518.26 is: 9,777.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.34 : 31,962.86 = 6,518.26 : x
  2. Step 2: Convert to fraction form
    21,309.34/31,962.86 = 6,518.26/x
  3. Step 3: Cross multiply
    21,309.34x = 31,962.86 × 6,518.26
  4. Step 4: Simplify right side
    21,309.34x = 208,342,111.82
  5. Step 5: Solve for x
    x = 208,342,111.82/21,309.34
  6. Step 6: Final answer
    x = 9,777.03

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1.5x scale

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.