Home / 15,736.10-21,715.16-9,021.32

Finding the Fourth Proportional to 15,736.10, 21,715.16 and 9,021.32

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Solution

The fourth proportional to 15,736.10, 21,715.16 and 9,021.32 is: 12,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.10 : 21,715.16 = 9,021.32 : x
  2. Step 2: Convert to fraction form
    15,736.10/21,715.16 = 9,021.32/x
  3. Step 3: Cross multiply
    15,736.10x = 21,715.16 × 9,021.32
  4. Step 4: Simplify right side
    15,736.10x = 195,899,533.23
  5. Step 5: Solve for x
    x = 195,899,533.23/15,736.10
  6. Step 6: Final answer
    x = 12,449.05

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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.