Home / 15,708.96-21,675.60-11,527.20

Finding the Fourth Proportional to 15,708.96, 21,675.60 and 11,527.20

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Solution

The fourth proportional to 15,708.96, 21,675.60 and 11,527.20 is: 15,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.96 : 21,675.60 = 11,527.20 : x
  2. Step 2: Convert to fraction form
    15,708.96/21,675.60 = 11,527.20/x
  3. Step 3: Cross multiply
    15,708.96x = 21,675.60 × 11,527.20
  4. Step 4: Simplify right side
    15,708.96x = 249,858,976.32
  5. Step 5: Solve for x
    x = 249,858,976.32/15,708.96
  6. Step 6: Final answer
    x = 15,905.51

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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.