Home / 10,326.62-15,490.69-2,931.62

Finding the Fourth Proportional to 10,326.62, 15,490.69 and 2,931.62

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Solution

The fourth proportional to 10,326.62, 15,490.69 and 2,931.62 is: 4,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.62 : 15,490.69 = 2,931.62 : x
  2. Step 2: Convert to fraction form
    10,326.62/15,490.69 = 2,931.62/x
  3. Step 3: Cross multiply
    10,326.62x = 15,490.69 × 2,931.62
  4. Step 4: Simplify right side
    10,326.62x = 45,412,731.84
  5. Step 5: Solve for x
    x = 45,412,731.84/10,326.62
  6. Step 6: Final answer
    x = 4,397.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.