Home / 13,223.32-18,248.08-7,173.55

Finding the Fourth Proportional to 13,223.32, 18,248.08 and 7,173.55

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Solution

The fourth proportional to 13,223.32, 18,248.08 and 7,173.55 is: 9,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.32 : 18,248.08 = 7,173.55 : x
  2. Step 2: Convert to fraction form
    13,223.32/18,248.08 = 7,173.55/x
  3. Step 3: Cross multiply
    13,223.32x = 18,248.08 × 7,173.55
  4. Step 4: Simplify right side
    13,223.32x = 130,903,514.28
  5. Step 5: Solve for x
    x = 130,903,514.28/13,223.32
  6. Step 6: Final answer
    x = 9,899.44

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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.