Home / 15,869.02-21,869.04-11,621.38

Finding the Fourth Proportional to 15,869.02, 21,869.04 and 11,621.38

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Solution

The fourth proportional to 15,869.02, 21,869.04 and 11,621.38 is: 16,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.02 : 21,869.04 = 11,621.38 : x
  2. Step 2: Convert to fraction form
    15,869.02/21,869.04 = 11,621.38/x
  3. Step 3: Cross multiply
    15,869.02x = 21,869.04 × 11,621.38
  4. Step 4: Simplify right side
    15,869.02x = 254,148,424.08
  5. Step 5: Solve for x
    x = 254,148,424.08/15,869.02
  6. Step 6: Final answer
    x = 16,015.38

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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.