Home / 26,457.28-39,679.20-9,808.12

Finding the Fourth Proportional to 26,457.28, 39,679.20 and 9,808.12

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Solution

The fourth proportional to 26,457.28, 39,679.20 and 9,808.12 is: 14,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,457.28 : 39,679.20 = 9,808.12 : x
  2. Step 2: Convert to fraction form
    26,457.28/39,679.20 = 9,808.12/x
  3. Step 3: Cross multiply
    26,457.28x = 39,679.20 × 9,808.12
  4. Step 4: Simplify right side
    26,457.28x = 389,178,355.10
  5. Step 5: Solve for x
    x = 389,178,355.10/26,457.28
  6. Step 6: Final answer
    x = 14,709.69

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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.