Home / 15,872.19-21,903.51-8,798.58

Finding the Fourth Proportional to 15,872.19, 21,903.51 and 8,798.58

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Solution

The fourth proportional to 15,872.19, 21,903.51 and 8,798.58 is: 12,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.19 : 21,903.51 = 8,798.58 : x
  2. Step 2: Convert to fraction form
    15,872.19/21,903.51 = 8,798.58/x
  3. Step 3: Cross multiply
    15,872.19x = 21,903.51 × 8,798.58
  4. Step 4: Simplify right side
    15,872.19x = 192,719,785.02
  5. Step 5: Solve for x
    x = 192,719,785.02/15,872.19
  6. Step 6: Final answer
    x = 12,141.98

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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.