Home / 13,574.10-18,730.08-8,270.58

Finding the Fourth Proportional to 13,574.10, 18,730.08 and 8,270.58

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Solution

The fourth proportional to 13,574.10, 18,730.08 and 8,270.58 is: 11,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.10 : 18,730.08 = 8,270.58 : x
  2. Step 2: Convert to fraction form
    13,574.10/18,730.08 = 8,270.58/x
  3. Step 3: Cross multiply
    13,574.10x = 18,730.08 × 8,270.58
  4. Step 4: Simplify right side
    13,574.10x = 154,908,625.05
  5. Step 5: Solve for x
    x = 154,908,625.05/13,574.10
  6. Step 6: Final answer
    x = 11,412.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.