Home / 10,619.52-14,656.32-6,427.84

Finding the Fourth Proportional to 10,619.52, 14,656.32 and 6,427.84

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Solution

The fourth proportional to 10,619.52, 14,656.32 and 6,427.84 is: 8,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.52 : 14,656.32 = 6,427.84 : x
  2. Step 2: Convert to fraction form
    10,619.52/14,656.32 = 6,427.84/x
  3. Step 3: Cross multiply
    10,619.52x = 14,656.32 × 6,427.84
  4. Step 4: Simplify right side
    10,619.52x = 94,208,479.95
  5. Step 5: Solve for x
    x = 94,208,479.95/10,619.52
  6. Step 6: Final answer
    x = 8,871.26

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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.