Home / 18,868.61-26,038.67-10,485.11

Finding the Fourth Proportional to 18,868.61, 26,038.67 and 10,485.11

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Solution

The fourth proportional to 18,868.61, 26,038.67 and 10,485.11 is: 14,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.61 : 26,038.67 = 10,485.11 : x
  2. Step 2: Convert to fraction form
    18,868.61/26,038.67 = 10,485.11/x
  3. Step 3: Cross multiply
    18,868.61x = 26,038.67 × 10,485.11
  4. Step 4: Simplify right side
    18,868.61x = 273,018,136.58
  5. Step 5: Solve for x
    x = 273,018,136.58/18,868.61
  6. Step 6: Final answer
    x = 14,469.44

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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.