Home / 10,923.66-15,075.18-6,143.70

Finding the Fourth Proportional to 10,923.66, 15,075.18 and 6,143.70

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Solution

The fourth proportional to 10,923.66, 15,075.18 and 6,143.70 is: 8,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.66 : 15,075.18 = 6,143.70 : x
  2. Step 2: Convert to fraction form
    10,923.66/15,075.18 = 6,143.70/x
  3. Step 3: Cross multiply
    10,923.66x = 15,075.18 × 6,143.70
  4. Step 4: Simplify right side
    10,923.66x = 92,617,383.37
  5. Step 5: Solve for x
    x = 92,617,383.37/10,923.66
  6. Step 6: Final answer
    x = 8,478.60

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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.