Home / 13,075.14-18,045.23-7,769.96

Finding the Fourth Proportional to 13,075.14, 18,045.23 and 7,769.96

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Solution

The fourth proportional to 13,075.14, 18,045.23 and 7,769.96 is: 10,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.14 : 18,045.23 = 7,769.96 : x
  2. Step 2: Convert to fraction form
    13,075.14/18,045.23 = 7,769.96/x
  3. Step 3: Cross multiply
    13,075.14x = 18,045.23 × 7,769.96
  4. Step 4: Simplify right side
    13,075.14x = 140,210,715.29
  5. Step 5: Solve for x
    x = 140,210,715.29/13,075.14
  6. Step 6: Final answer
    x = 10,723.46

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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.