Home / 16,075.40-22,160.39-11,280.20

Finding the Fourth Proportional to 16,075.40, 22,160.39 and 11,280.20

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Solution

The fourth proportional to 16,075.40, 22,160.39 and 11,280.20 is: 15,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,075.40 : 22,160.39 = 11,280.20 : x
  2. Step 2: Convert to fraction form
    16,075.40/22,160.39 = 11,280.20/x
  3. Step 3: Cross multiply
    16,075.40x = 22,160.39 × 11,280.20
  4. Step 4: Simplify right side
    16,075.40x = 249,973,464.08
  5. Step 5: Solve for x
    x = 249,973,464.08/16,075.40
  6. Step 6: Final answer
    x = 15,550.07

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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.