Home / 13,098.03-18,075.63-7,129.95

Finding the Fourth Proportional to 13,098.03, 18,075.63 and 7,129.95

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Solution

The fourth proportional to 13,098.03, 18,075.63 and 7,129.95 is: 9,839.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098.03 : 18,075.63 = 7,129.95 : x
  2. Step 2: Convert to fraction form
    13,098.03/18,075.63 = 7,129.95/x
  3. Step 3: Cross multiply
    13,098.03x = 18,075.63 × 7,129.95
  4. Step 4: Simplify right side
    13,098.03x = 128,878,338.12
  5. Step 5: Solve for x
    x = 128,878,338.12/13,098.03
  6. Step 6: Final answer
    x = 9,839.52

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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.