Home / 15,595.56-21,471.99-12,621.24

Finding the Fourth Proportional to 15,595.56, 21,471.99 and 12,621.24

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Solution

The fourth proportional to 15,595.56, 21,471.99 and 12,621.24 is: 17,376.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.56 : 21,471.99 = 12,621.24 : x
  2. Step 2: Convert to fraction form
    15,595.56/21,471.99 = 12,621.24/x
  3. Step 3: Cross multiply
    15,595.56x = 21,471.99 × 12,621.24
  4. Step 4: Simplify right side
    15,595.56x = 271,003,139.07
  5. Step 5: Solve for x
    x = 271,003,139.07/15,595.56
  6. Step 6: Final answer
    x = 17,376.94

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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.