Home / 11,119.34-15,342.36-6,402.72

Finding the Fourth Proportional to 11,119.34, 15,342.36 and 6,402.72

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Solution

The fourth proportional to 11,119.34, 15,342.36 and 6,402.72 is: 8,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.34 : 15,342.36 = 6,402.72 : x
  2. Step 2: Convert to fraction form
    11,119.34/15,342.36 = 6,402.72/x
  3. Step 3: Cross multiply
    11,119.34x = 15,342.36 × 6,402.72
  4. Step 4: Simplify right side
    11,119.34x = 98,232,835.22
  5. Step 5: Solve for x
    x = 98,232,835.22/11,119.34
  6. Step 6: Final answer
    x = 8,834.41

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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.