Home / 18,627.91-25,706.57-10,130.10

Finding the Fourth Proportional to 18,627.91, 25,706.57 and 10,130.10

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Solution

The fourth proportional to 18,627.91, 25,706.57 and 10,130.10 is: 13,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.91 : 25,706.57 = 10,130.10 : x
  2. Step 2: Convert to fraction form
    18,627.91/25,706.57 = 10,130.10/x
  3. Step 3: Cross multiply
    18,627.91x = 25,706.57 × 10,130.10
  4. Step 4: Simplify right side
    18,627.91x = 260,409,977.71
  5. Step 5: Solve for x
    x = 260,409,977.71/18,627.91
  6. Step 6: Final answer
    x = 13,979.56

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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.