Home / 18,710.48-25,823.79-11,157.31

Finding the Fourth Proportional to 18,710.48, 25,823.79 and 11,157.31

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Solution

The fourth proportional to 18,710.48, 25,823.79 and 11,157.31 is: 15,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.48 : 25,823.79 = 11,157.31 : x
  2. Step 2: Convert to fraction form
    18,710.48/25,823.79 = 11,157.31/x
  3. Step 3: Cross multiply
    18,710.48x = 25,823.79 × 11,157.31
  4. Step 4: Simplify right side
    18,710.48x = 288,124,030.40
  5. Step 5: Solve for x
    x = 288,124,030.40/18,710.48
  6. Step 6: Final answer
    x = 15,399.07

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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.