Home / 11,693.02-16,136.40-6,977.20

Finding the Fourth Proportional to 11,693.02, 16,136.40 and 6,977.20

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Solution

The fourth proportional to 11,693.02, 16,136.40 and 6,977.20 is: 9,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.02 : 16,136.40 = 6,977.20 : x
  2. Step 2: Convert to fraction form
    11,693.02/16,136.40 = 6,977.20/x
  3. Step 3: Cross multiply
    11,693.02x = 16,136.40 × 6,977.20
  4. Step 4: Simplify right side
    11,693.02x = 112,586,890.08
  5. Step 5: Solve for x
    x = 112,586,890.08/11,693.02
  6. Step 6: Final answer
    x = 9,628.56

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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.