Home / 12,459.32-18,678.06-5,887.40

Finding the Fourth Proportional to 12,459.32, 18,678.06 and 5,887.40

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Solution

The fourth proportional to 12,459.32, 18,678.06 and 5,887.40 is: 8,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.32 : 18,678.06 = 5,887.40 : x
  2. Step 2: Convert to fraction form
    12,459.32/18,678.06 = 5,887.40/x
  3. Step 3: Cross multiply
    12,459.32x = 18,678.06 × 5,887.40
  4. Step 4: Simplify right side
    12,459.32x = 109,965,210.44
  5. Step 5: Solve for x
    x = 109,965,210.44/12,459.32
  6. Step 6: Final answer
    x = 8,825.94

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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.