Home / 18,180.10-27,271.50-13,259.35

Finding the Fourth Proportional to 18,180.10, 27,271.50 and 13,259.35

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Solution

The fourth proportional to 18,180.10, 27,271.50 and 13,259.35 is: 19,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.10 : 27,271.50 = 13,259.35 : x
  2. Step 2: Convert to fraction form
    18,180.10/27,271.50 = 13,259.35/x
  3. Step 3: Cross multiply
    18,180.10x = 27,271.50 × 13,259.35
  4. Step 4: Simplify right side
    18,180.10x = 361,602,363.53
  5. Step 5: Solve for x
    x = 361,602,363.53/18,180.10
  6. Step 6: Final answer
    x = 19,890.01

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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.