Home / 12,650.45-17,457.59-6,985.31

Finding the Fourth Proportional to 12,650.45, 17,457.59 and 6,985.31

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Solution

The fourth proportional to 12,650.45, 17,457.59 and 6,985.31 is: 9,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.45 : 17,457.59 = 6,985.31 : x
  2. Step 2: Convert to fraction form
    12,650.45/17,457.59 = 6,985.31/x
  3. Step 3: Cross multiply
    12,650.45x = 17,457.59 × 6,985.31
  4. Step 4: Simplify right side
    12,650.45x = 121,946,608.18
  5. Step 5: Solve for x
    x = 121,946,608.18/12,650.45
  6. Step 6: Final answer
    x = 9,639.71

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1.5x scale

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.