Home / 15,442.64-21,307.56-9,157.04

Finding the Fourth Proportional to 15,442.64, 21,307.56 and 9,157.04

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Solution

The fourth proportional to 15,442.64, 21,307.56 and 9,157.04 is: 12,634.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.64 : 21,307.56 = 9,157.04 : x
  2. Step 2: Convert to fraction form
    15,442.64/21,307.56 = 9,157.04/x
  3. Step 3: Cross multiply
    15,442.64x = 21,307.56 × 9,157.04
  4. Step 4: Simplify right side
    15,442.64x = 195,114,179.22
  5. Step 5: Solve for x
    x = 195,114,179.22/15,442.64
  6. Step 6: Final answer
    x = 12,634.77

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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.