Home / 11,621.04-16,037.28-7,147.32

Finding the Fourth Proportional to 11,621.04, 16,037.28 and 7,147.32

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Solution

The fourth proportional to 11,621.04, 16,037.28 and 7,147.32 is: 9,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.04 : 16,037.28 = 7,147.32 : x
  2. Step 2: Convert to fraction form
    11,621.04/16,037.28 = 7,147.32/x
  3. Step 3: Cross multiply
    11,621.04x = 16,037.28 × 7,147.32
  4. Step 4: Simplify right side
    11,621.04x = 114,623,572.09
  5. Step 5: Solve for x
    x = 114,623,572.09/11,621.04
  6. Step 6: Final answer
    x = 9,863.45

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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.