Home / 17,876.90-24,670.23-9,919.28

Finding the Fourth Proportional to 17,876.90, 24,670.23 and 9,919.28

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Solution

The fourth proportional to 17,876.90, 24,670.23 and 9,919.28 is: 13,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,876.90 : 24,670.23 = 9,919.28 : x
  2. Step 2: Convert to fraction form
    17,876.90/24,670.23 = 9,919.28/x
  3. Step 3: Cross multiply
    17,876.90x = 24,670.23 × 9,919.28
  4. Step 4: Simplify right side
    17,876.90x = 244,710,919.03
  5. Step 5: Solve for x
    x = 244,710,919.03/17,876.90
  6. Step 6: Final answer
    x = 13,688.67

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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.