Home / 18,437.90-27,640.65-11,045.30

Finding the Fourth Proportional to 18,437.90, 27,640.65 and 11,045.30

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Solution

The fourth proportional to 18,437.90, 27,640.65 and 11,045.30 is: 16,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.90 : 27,640.65 = 11,045.30 : x
  2. Step 2: Convert to fraction form
    18,437.90/27,640.65 = 11,045.30/x
  3. Step 3: Cross multiply
    18,437.90x = 27,640.65 × 11,045.30
  4. Step 4: Simplify right side
    18,437.90x = 305,299,271.45
  5. Step 5: Solve for x
    x = 305,299,271.45/18,437.90
  6. Step 6: Final answer
    x = 16,558.25

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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.