Home / 15,636.20-21,574.34-9,259.56

Finding the Fourth Proportional to 15,636.20, 21,574.34 and 9,259.56

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Solution

The fourth proportional to 15,636.20, 21,574.34 and 9,259.56 is: 12,776.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.20 : 21,574.34 = 9,259.56 : x
  2. Step 2: Convert to fraction form
    15,636.20/21,574.34 = 9,259.56/x
  3. Step 3: Cross multiply
    15,636.20x = 21,574.34 × 9,259.56
  4. Step 4: Simplify right side
    15,636.20x = 199,768,895.69
  5. Step 5: Solve for x
    x = 199,768,895.69/15,636.20
  6. Step 6: Final answer
    x = 12,776.05

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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.