Home / 15,507.60-21,403.44-9,223.44

Finding the Fourth Proportional to 15,507.60, 21,403.44 and 9,223.44

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Solution

The fourth proportional to 15,507.60, 21,403.44 and 9,223.44 is: 12,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.60 : 21,403.44 = 9,223.44 : x
  2. Step 2: Convert to fraction form
    15,507.60/21,403.44 = 9,223.44/x
  3. Step 3: Cross multiply
    15,507.60x = 21,403.44 × 9,223.44
  4. Step 4: Simplify right side
    15,507.60x = 197,413,344.63
  5. Step 5: Solve for x
    x = 197,413,344.63/15,507.60
  6. Step 6: Final answer
    x = 12,730.10

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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.