Home / 18,246.90-25,165.26-12,590.67

Finding the Fourth Proportional to 18,246.90, 25,165.26 and 12,590.67

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Solution

The fourth proportional to 18,246.90, 25,165.26 and 12,590.67 is: 17,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.90 : 25,165.26 = 12,590.67 : x
  2. Step 2: Convert to fraction form
    18,246.90/25,165.26 = 12,590.67/x
  3. Step 3: Cross multiply
    18,246.90x = 25,165.26 × 12,590.67
  4. Step 4: Simplify right side
    18,246.90x = 316,847,484.12
  5. Step 5: Solve for x
    x = 316,847,484.12/18,246.90
  6. Step 6: Final answer
    x = 17,364.46

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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.