Home / 15,637.96-21,579.01-9,591.51

Finding the Fourth Proportional to 15,637.96, 21,579.01 and 9,591.51

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Solution

The fourth proportional to 15,637.96, 21,579.01 and 9,591.51 is: 13,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.96 : 21,579.01 = 9,591.51 : x
  2. Step 2: Convert to fraction form
    15,637.96/21,579.01 = 9,591.51/x
  3. Step 3: Cross multiply
    15,637.96x = 21,579.01 × 9,591.51
  4. Step 4: Simplify right side
    15,637.96x = 206,975,347.15
  5. Step 5: Solve for x
    x = 206,975,347.15/15,637.96
  6. Step 6: Final answer
    x = 13,235.44

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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.