Home / 10,619.46-14,655.18-6,142.80

Finding the Fourth Proportional to 10,619.46, 14,655.18 and 6,142.80

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Solution

The fourth proportional to 10,619.46, 14,655.18 and 6,142.80 is: 8,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.46 : 14,655.18 = 6,142.80 : x
  2. Step 2: Convert to fraction form
    10,619.46/14,655.18 = 6,142.80/x
  3. Step 3: Cross multiply
    10,619.46x = 14,655.18 × 6,142.80
  4. Step 4: Simplify right side
    10,619.46x = 90,023,839.70
  5. Step 5: Solve for x
    x = 90,023,839.70/10,619.46
  6. Step 6: Final answer
    x = 8,477.25

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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.