Home / 15,539.56-21,448.74-9,572.20

Finding the Fourth Proportional to 15,539.56, 21,448.74 and 9,572.20

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Solution

The fourth proportional to 15,539.56, 21,448.74 and 9,572.20 is: 13,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.56 : 21,448.74 = 9,572.20 : x
  2. Step 2: Convert to fraction form
    15,539.56/21,448.74 = 9,572.20/x
  3. Step 3: Cross multiply
    15,539.56x = 21,448.74 × 9,572.20
  4. Step 4: Simplify right side
    15,539.56x = 205,311,629.03
  5. Step 5: Solve for x
    x = 205,311,629.03/15,539.56
  6. Step 6: Final answer
    x = 13,212.19

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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.