Home / 11,356.77-15,673.10-6,321.40

Finding the Fourth Proportional to 11,356.77, 15,673.10 and 6,321.40

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Solution

The fourth proportional to 11,356.77, 15,673.10 and 6,321.40 is: 8,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.77 : 15,673.10 = 6,321.40 : x
  2. Step 2: Convert to fraction form
    11,356.77/15,673.10 = 6,321.40/x
  3. Step 3: Cross multiply
    11,356.77x = 15,673.10 × 6,321.40
  4. Step 4: Simplify right side
    11,356.77x = 99,075,934.34
  5. Step 5: Solve for x
    x = 99,075,934.34/11,356.77
  6. Step 6: Final answer
    x = 8,723.95

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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.