Home / 17,688.28-26,511.06-7,816.36

Finding the Fourth Proportional to 17,688.28, 26,511.06 and 7,816.36

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Solution

The fourth proportional to 17,688.28, 26,511.06 and 7,816.36 is: 11,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.28 : 26,511.06 = 7,816.36 : x
  2. Step 2: Convert to fraction form
    17,688.28/26,511.06 = 7,816.36/x
  3. Step 3: Cross multiply
    17,688.28x = 26,511.06 × 7,816.36
  4. Step 4: Simplify right side
    17,688.28x = 207,219,988.94
  5. Step 5: Solve for x
    x = 207,219,988.94/17,688.28
  6. Step 6: Final answer
    x = 11,715.10

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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.