Home / 16,130.16-24,146.10-12,980.88

Finding the Fourth Proportional to 16,130.16, 24,146.10 and 12,980.88

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Solution

The fourth proportional to 16,130.16, 24,146.10 and 12,980.88 is: 19,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,130.16 : 24,146.10 = 12,980.88 : x
  2. Step 2: Convert to fraction form
    16,130.16/24,146.10 = 12,980.88/x
  3. Step 3: Cross multiply
    16,130.16x = 24,146.10 × 12,980.88
  4. Step 4: Simplify right side
    16,130.16x = 313,437,626.57
  5. Step 5: Solve for x
    x = 313,437,626.57/16,130.16
  6. Step 6: Final answer
    x = 19,431.77

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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.