Home / 10,279.32-15,415.35-3,703.74

Finding the Fourth Proportional to 10,279.32, 15,415.35 and 3,703.74

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Solution

The fourth proportional to 10,279.32, 15,415.35 and 3,703.74 is: 5,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.32 : 15,415.35 = 3,703.74 : x
  2. Step 2: Convert to fraction form
    10,279.32/15,415.35 = 3,703.74/x
  3. Step 3: Cross multiply
    10,279.32x = 15,415.35 × 3,703.74
  4. Step 4: Simplify right side
    10,279.32x = 57,094,448.41
  5. Step 5: Solve for x
    x = 57,094,448.41/10,279.32
  6. Step 6: Final answer
    x = 5,554.30

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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.