Home / 17,709.40-26,564.10-9,917.20

Finding the Fourth Proportional to 17,709.40, 26,564.10 and 9,917.20

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Solution

The fourth proportional to 17,709.40, 26,564.10 and 9,917.20 is: 14,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.40 : 26,564.10 = 9,917.20 : x
  2. Step 2: Convert to fraction form
    17,709.40/26,564.10 = 9,917.20/x
  3. Step 3: Cross multiply
    17,709.40x = 26,564.10 × 9,917.20
  4. Step 4: Simplify right side
    17,709.40x = 263,441,492.52
  5. Step 5: Solve for x
    x = 263,441,492.52/17,709.40
  6. Step 6: Final answer
    x = 14,875.80

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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.