Home / 15,386.92-21,226.35-9,643.33

Finding the Fourth Proportional to 15,386.92, 21,226.35 and 9,643.33

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Solution

The fourth proportional to 15,386.92, 21,226.35 and 9,643.33 is: 13,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.92 : 21,226.35 = 9,643.33 : x
  2. Step 2: Convert to fraction form
    15,386.92/21,226.35 = 9,643.33/x
  3. Step 3: Cross multiply
    15,386.92x = 21,226.35 × 9,643.33
  4. Step 4: Simplify right side
    15,386.92x = 204,692,697.75
  5. Step 5: Solve for x
    x = 204,692,697.75/15,386.92
  6. Step 6: Final answer
    x = 13,303.03

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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.