Home / 13,075.38-18,045.09-7,486.74

Finding the Fourth Proportional to 13,075.38, 18,045.09 and 7,486.74

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Solution

The fourth proportional to 13,075.38, 18,045.09 and 7,486.74 is: 10,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.38 : 18,045.09 = 7,486.74 : x
  2. Step 2: Convert to fraction form
    13,075.38/18,045.09 = 7,486.74/x
  3. Step 3: Cross multiply
    13,075.38x = 18,045.09 × 7,486.74
  4. Step 4: Simplify right side
    13,075.38x = 135,098,897.11
  5. Step 5: Solve for x
    x = 135,098,897.11/13,075.38
  6. Step 6: Final answer
    x = 10,332.31

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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.