Home / 14,356.05-19,806.77-8,688.98

Finding the Fourth Proportional to 14,356.05, 19,806.77 and 8,688.98

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Solution

The fourth proportional to 14,356.05, 19,806.77 and 8,688.98 is: 11,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,356.05 : 19,806.77 = 8,688.98 : x
  2. Step 2: Convert to fraction form
    14,356.05/19,806.77 = 8,688.98/x
  3. Step 3: Cross multiply
    14,356.05x = 19,806.77 × 8,688.98
  4. Step 4: Simplify right side
    14,356.05x = 172,100,699.63
  5. Step 5: Solve for x
    x = 172,100,699.63/14,356.05
  6. Step 6: Final answer
    x = 11,988.03

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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.