Home / 15,749.28-21,734.01-8,579.16

Finding the Fourth Proportional to 15,749.28, 21,734.01 and 8,579.16

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Solution

The fourth proportional to 15,749.28, 21,734.01 and 8,579.16 is: 11,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.28 : 21,734.01 = 8,579.16 : x
  2. Step 2: Convert to fraction form
    15,749.28/21,734.01 = 8,579.16/x
  3. Step 3: Cross multiply
    15,749.28x = 21,734.01 × 8,579.16
  4. Step 4: Simplify right side
    15,749.28x = 186,459,549.23
  5. Step 5: Solve for x
    x = 186,459,549.23/15,749.28
  6. Step 6: Final answer
    x = 11,839.24

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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.