Home / 10,290.13-14,200.46-5,574.45

Finding the Fourth Proportional to 10,290.13, 14,200.46 and 5,574.45

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Solution

The fourth proportional to 10,290.13, 14,200.46 and 5,574.45 is: 7,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.13 : 14,200.46 = 5,574.45 : x
  2. Step 2: Convert to fraction form
    10,290.13/14,200.46 = 5,574.45/x
  3. Step 3: Cross multiply
    10,290.13x = 14,200.46 × 5,574.45
  4. Step 4: Simplify right side
    10,290.13x = 79,159,754.25
  5. Step 5: Solve for x
    x = 79,159,754.25/10,290.13
  6. Step 6: Final answer
    x = 7,692.78

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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.