Home / 13,075.11-18,041.81-7,772.04

Finding the Fourth Proportional to 13,075.11, 18,041.81 and 7,772.04

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Solution

The fourth proportional to 13,075.11, 18,041.81 and 7,772.04 is: 10,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.11 : 18,041.81 = 7,772.04 : x
  2. Step 2: Convert to fraction form
    13,075.11/18,041.81 = 7,772.04/x
  3. Step 3: Cross multiply
    13,075.11x = 18,041.81 × 7,772.04
  4. Step 4: Simplify right side
    13,075.11x = 140,221,630.13
  5. Step 5: Solve for x
    x = 140,221,630.13/13,075.11
  6. Step 6: Final answer
    x = 10,724.32

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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.