Home / 15,444.82-21,290.25-9,465.40

Finding the Fourth Proportional to 15,444.82, 21,290.25 and 9,465.40

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Solution

The fourth proportional to 15,444.82, 21,290.25 and 9,465.40 is: 13,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.82 : 21,290.25 = 9,465.40 : x
  2. Step 2: Convert to fraction form
    15,444.82/21,290.25 = 9,465.40/x
  3. Step 3: Cross multiply
    15,444.82x = 21,290.25 × 9,465.40
  4. Step 4: Simplify right side
    15,444.82x = 201,520,732.35
  5. Step 5: Solve for x
    x = 201,520,732.35/15,444.82
  6. Step 6: Final answer
    x = 13,047.79

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Double scale
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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.