Home / 26,405.29-39,612.34-9,765.36

Finding the Fourth Proportional to 26,405.29, 39,612.34 and 9,765.36

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Solution

The fourth proportional to 26,405.29, 39,612.34 and 9,765.36 is: 14,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,405.29 : 39,612.34 = 9,765.36 : x
  2. Step 2: Convert to fraction form
    26,405.29/39,612.34 = 9,765.36/x
  3. Step 3: Cross multiply
    26,405.29x = 39,612.34 × 9,765.36
  4. Step 4: Simplify right side
    26,405.29x = 386,828,772.75
  5. Step 5: Solve for x
    x = 386,828,772.75/26,405.29
  6. Step 6: Final answer
    x = 14,649.67

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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.