Home / 18,707.48-25,816.09-10,209.74

Finding the Fourth Proportional to 18,707.48, 25,816.09 and 10,209.74

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Solution

The fourth proportional to 18,707.48, 25,816.09 and 10,209.74 is: 14,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.48 : 25,816.09 = 10,209.74 : x
  2. Step 2: Convert to fraction form
    18,707.48/25,816.09 = 10,209.74/x
  3. Step 3: Cross multiply
    18,707.48x = 25,816.09 × 10,209.74
  4. Step 4: Simplify right side
    18,707.48x = 263,575,644.02
  5. Step 5: Solve for x
    x = 263,575,644.02/18,707.48
  6. Step 6: Final answer
    x = 14,089.32

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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.