Home / 15,519.03-21,417.32-8,804.71

Finding the Fourth Proportional to 15,519.03, 21,417.32 and 8,804.71

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Solution

The fourth proportional to 15,519.03, 21,417.32 and 8,804.71 is: 12,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.03 : 21,417.32 = 8,804.71 : x
  2. Step 2: Convert to fraction form
    15,519.03/21,417.32 = 8,804.71/x
  3. Step 3: Cross multiply
    15,519.03x = 21,417.32 × 8,804.71
  4. Step 4: Simplify right side
    15,519.03x = 188,573,291.58
  5. Step 5: Solve for x
    x = 188,573,291.58/15,519.03
  6. Step 6: Final answer
    x = 12,151.10

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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.