Home / 13,290.04-18,332.94-9,317.08

Finding the Fourth Proportional to 13,290.04, 18,332.94 and 9,317.08

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Solution

The fourth proportional to 13,290.04, 18,332.94 and 9,317.08 is: 12,852.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.04 : 18,332.94 = 9,317.08 : x
  2. Step 2: Convert to fraction form
    13,290.04/18,332.94 = 9,317.08/x
  3. Step 3: Cross multiply
    13,290.04x = 18,332.94 × 9,317.08
  4. Step 4: Simplify right side
    13,290.04x = 170,809,468.62
  5. Step 5: Solve for x
    x = 170,809,468.62/13,290.04
  6. Step 6: Final answer
    x = 12,852.44

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Similar ratio
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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.