Home / 15,202.76-21,037.32-12,961.08

Finding the Fourth Proportional to 15,202.76, 21,037.32 and 12,961.08

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Solution

The fourth proportional to 15,202.76, 21,037.32 and 12,961.08 is: 17,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.76 : 21,037.32 = 12,961.08 : x
  2. Step 2: Convert to fraction form
    15,202.76/21,037.32 = 12,961.08/x
  3. Step 3: Cross multiply
    15,202.76x = 21,037.32 × 12,961.08
  4. Step 4: Simplify right side
    15,202.76x = 272,666,387.51
  5. Step 5: Solve for x
    x = 272,666,387.51/15,202.76
  6. Step 6: Final answer
    x = 17,935.33

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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.