Home / 18,344.79-25,316.40-10,386.84

Finding the Fourth Proportional to 18,344.79, 25,316.40 and 10,386.84

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Solution

The fourth proportional to 18,344.79, 25,316.40 and 10,386.84 is: 14,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.79 : 25,316.40 = 10,386.84 : x
  2. Step 2: Convert to fraction form
    18,344.79/25,316.40 = 10,386.84/x
  3. Step 3: Cross multiply
    18,344.79x = 25,316.40 × 10,386.84
  4. Step 4: Simplify right side
    18,344.79x = 262,957,396.18
  5. Step 5: Solve for x
    x = 262,957,396.18/18,344.79
  6. Step 6: Final answer
    x = 14,334.17

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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.