Home / 18,388.07-25,374.79-10,430.12

Finding the Fourth Proportional to 18,388.07, 25,374.79 and 10,430.12

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Solution

The fourth proportional to 18,388.07, 25,374.79 and 10,430.12 is: 14,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.07 : 25,374.79 = 10,430.12 : x
  2. Step 2: Convert to fraction form
    18,388.07/25,374.79 = 10,430.12/x
  3. Step 3: Cross multiply
    18,388.07x = 25,374.79 × 10,430.12
  4. Step 4: Simplify right side
    18,388.07x = 264,662,104.67
  5. Step 5: Solve for x
    x = 264,662,104.67/18,388.07
  6. Step 6: Final answer
    x = 14,393.14

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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.