Home / 25,660.16-38,497.08-8,130.32

Finding the Fourth Proportional to 25,660.16, 38,497.08 and 8,130.32

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Solution

The fourth proportional to 25,660.16, 38,497.08 and 8,130.32 is: 12,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,660.16 : 38,497.08 = 8,130.32 : x
  2. Step 2: Convert to fraction form
    25,660.16/38,497.08 = 8,130.32/x
  3. Step 3: Cross multiply
    25,660.16x = 38,497.08 × 8,130.32
  4. Step 4: Simplify right side
    25,660.16x = 312,993,579.47
  5. Step 5: Solve for x
    x = 312,993,579.47/25,660.16
  6. Step 6: Final answer
    x = 12,197.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.