Home / 19,478.16-26,879.86-10,525.68

Finding the Fourth Proportional to 19,478.16, 26,879.86 and 10,525.68

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Solution

The fourth proportional to 19,478.16, 26,879.86 and 10,525.68 is: 14,525.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.16 : 26,879.86 = 10,525.68 : x
  2. Step 2: Convert to fraction form
    19,478.16/26,879.86 = 10,525.68/x
  3. Step 3: Cross multiply
    19,478.16x = 26,879.86 × 10,525.68
  4. Step 4: Simplify right side
    19,478.16x = 282,928,804.80
  5. Step 5: Solve for x
    x = 282,928,804.80/19,478.16
  6. Step 6: Final answer
    x = 14,525.44

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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.