Home / 10,619.17-15,928.65-6,460.36

Finding the Fourth Proportional to 10,619.17, 15,928.65 and 6,460.36

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Solution

The fourth proportional to 10,619.17, 15,928.65 and 6,460.36 is: 9,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.17 : 15,928.65 = 6,460.36 : x
  2. Step 2: Convert to fraction form
    10,619.17/15,928.65 = 6,460.36/x
  3. Step 3: Cross multiply
    10,619.17x = 15,928.65 × 6,460.36
  4. Step 4: Simplify right side
    10,619.17x = 102,904,773.49
  5. Step 5: Solve for x
    x = 102,904,773.49/10,619.17
  6. Step 6: Final answer
    x = 9,690.47

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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.