Home / 15,633.20-21,574.14-8,826.68

Finding the Fourth Proportional to 15,633.20, 21,574.14 and 8,826.68

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Solution

The fourth proportional to 15,633.20, 21,574.14 and 8,826.68 is: 12,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,633.20 : 21,574.14 = 8,826.68 : x
  2. Step 2: Convert to fraction form
    15,633.20/21,574.14 = 8,826.68/x
  3. Step 3: Cross multiply
    15,633.20x = 21,574.14 × 8,826.68
  4. Step 4: Simplify right side
    15,633.20x = 190,428,030.06
  5. Step 5: Solve for x
    x = 190,428,030.06/15,633.20
  6. Step 6: Final answer
    x = 12,181.00

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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.