Home / 10,427.63-15,643.41-4,188.13

Finding the Fourth Proportional to 10,427.63, 15,643.41 and 4,188.13

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Solution

The fourth proportional to 10,427.63, 15,643.41 and 4,188.13 is: 6,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.63 : 15,643.41 = 4,188.13 : x
  2. Step 2: Convert to fraction form
    10,427.63/15,643.41 = 4,188.13/x
  3. Step 3: Cross multiply
    10,427.63x = 15,643.41 × 4,188.13
  4. Step 4: Simplify right side
    10,427.63x = 65,516,579.91
  5. Step 5: Solve for x
    x = 65,516,579.91/10,427.63
  6. Step 6: Final answer
    x = 6,282.98

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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.