Home / 15,563.31-21,460.34-10,518.79

Finding the Fourth Proportional to 15,563.31, 21,460.34 and 10,518.79

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Solution

The fourth proportional to 15,563.31, 21,460.34 and 10,518.79 is: 14,504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563.31 : 21,460.34 = 10,518.79 : x
  2. Step 2: Convert to fraction form
    15,563.31/21,460.34 = 10,518.79/x
  3. Step 3: Cross multiply
    15,563.31x = 21,460.34 × 10,518.79
  4. Step 4: Simplify right side
    15,563.31x = 225,736,809.79
  5. Step 5: Solve for x
    x = 225,736,809.79/15,563.31
  6. Step 6: Final answer
    x = 14,504.42

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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.