Home / 15,889.41-21,925.73-9,837.80

Finding the Fourth Proportional to 15,889.41, 21,925.73 and 9,837.80

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Solution

The fourth proportional to 15,889.41, 21,925.73 and 9,837.80 is: 13,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.41 : 21,925.73 = 9,837.80 : x
  2. Step 2: Convert to fraction form
    15,889.41/21,925.73 = 9,837.80/x
  3. Step 3: Cross multiply
    15,889.41x = 21,925.73 × 9,837.80
  4. Step 4: Simplify right side
    15,889.41x = 215,700,787.78
  5. Step 5: Solve for x
    x = 215,700,787.78/15,889.41
  6. Step 6: Final answer
    x = 13,575.13

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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.