Home / 12,685.57-18,937.59-11,025.29

Finding the Fourth Proportional to 12,685.57, 18,937.59 and 11,025.29

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Solution

The fourth proportional to 12,685.57, 18,937.59 and 11,025.29 is: 16,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.57 : 18,937.59 = 11,025.29 : x
  2. Step 2: Convert to fraction form
    12,685.57/18,937.59 = 11,025.29/x
  3. Step 3: Cross multiply
    12,685.57x = 18,937.59 × 11,025.29
  4. Step 4: Simplify right side
    12,685.57x = 208,792,421.65
  5. Step 5: Solve for x
    x = 208,792,421.65/12,685.57
  6. Step 6: Final answer
    x = 16,459.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.