Home / 15,612.52-21,534-9,941.68

Finding the Fourth Proportional to 15,612.52, 21,534 and 9,941.68

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Solution

The fourth proportional to 15,612.52, 21,534 and 9,941.68 is: 13,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.52 : 21,534 = 9,941.68 : x
  2. Step 2: Convert to fraction form
    15,612.52/21,534 = 9,941.68/x
  3. Step 3: Cross multiply
    15,612.52x = 21,534 × 9,941.68
  4. Step 4: Simplify right side
    15,612.52x = 214,084,137.12
  5. Step 5: Solve for x
    x = 214,084,137.12/15,612.52
  6. Step 6: Final answer
    x = 13,712.34

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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.