Home / 15,587.64-21,520.62-9,925.56

Finding the Fourth Proportional to 15,587.64, 21,520.62 and 9,925.56

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Solution

The fourth proportional to 15,587.64, 21,520.62 and 9,925.56 is: 13,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.64 : 21,520.62 = 9,925.56 : x
  2. Step 2: Convert to fraction form
    15,587.64/21,520.62 = 9,925.56/x
  3. Step 3: Cross multiply
    15,587.64x = 21,520.62 × 9,925.56
  4. Step 4: Simplify right side
    15,587.64x = 213,604,205.05
  5. Step 5: Solve for x
    x = 213,604,205.05/15,587.64
  6. Step 6: Final answer
    x = 13,703.43

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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.