Home / 12,598.30-18,904.65-4,812.70

Finding the Fourth Proportional to 12,598.30, 18,904.65 and 4,812.70

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Solution

The fourth proportional to 12,598.30, 18,904.65 and 4,812.70 is: 7,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.30 : 18,904.65 = 4,812.70 : x
  2. Step 2: Convert to fraction form
    12,598.30/18,904.65 = 4,812.70/x
  3. Step 3: Cross multiply
    12,598.30x = 18,904.65 × 4,812.70
  4. Step 4: Simplify right side
    12,598.30x = 90,982,409.06
  5. Step 5: Solve for x
    x = 90,982,409.06/12,598.30
  6. Step 6: Final answer
    x = 7,221.80

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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.