Home / 15,866.59-23,783.38-5,328.79

Finding the Fourth Proportional to 15,866.59, 23,783.38 and 5,328.79

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Solution

The fourth proportional to 15,866.59, 23,783.38 and 5,328.79 is: 7,987.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.59 : 23,783.38 = 5,328.79 : x
  2. Step 2: Convert to fraction form
    15,866.59/23,783.38 = 5,328.79/x
  3. Step 3: Cross multiply
    15,866.59x = 23,783.38 × 5,328.79
  4. Step 4: Simplify right side
    15,866.59x = 126,736,637.51
  5. Step 5: Solve for x
    x = 126,736,637.51/15,866.59
  6. Step 6: Final answer
    x = 7,987.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.