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Finding the Fourth Proportional to 12,671.04, 19,004.16 and 10,220.16

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Solution

The fourth proportional to 12,671.04, 19,004.16 and 10,220.16 is: 15,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.04 : 19,004.16 = 10,220.16 : x
  2. Step 2: Convert to fraction form
    12,671.04/19,004.16 = 10,220.16/x
  3. Step 3: Cross multiply
    12,671.04x = 19,004.16 × 10,220.16
  4. Step 4: Simplify right side
    12,671.04x = 194,225,555.87
  5. Step 5: Solve for x
    x = 194,225,555.87/12,671.04
  6. Step 6: Final answer
    x = 15,328.30

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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.