Home / 18,025.85-27,038.75-13,126.67

Finding the Fourth Proportional to 18,025.85, 27,038.75 and 13,126.67

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Solution

The fourth proportional to 18,025.85, 27,038.75 and 13,126.67 is: 19,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.85 : 27,038.75 = 13,126.67 : x
  2. Step 2: Convert to fraction form
    18,025.85/27,038.75 = 13,126.67/x
  3. Step 3: Cross multiply
    18,025.85x = 27,038.75 × 13,126.67
  4. Step 4: Simplify right side
    18,025.85x = 354,928,547.64
  5. Step 5: Solve for x
    x = 354,928,547.64/18,025.85
  6. Step 6: Final answer
    x = 19,689.98

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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.