Home / 15,873.02-21,902.88-9,158.96

Finding the Fourth Proportional to 15,873.02, 21,902.88 and 9,158.96

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Solution

The fourth proportional to 15,873.02, 21,902.88 and 9,158.96 is: 12,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,873.02 : 21,902.88 = 9,158.96 : x
  2. Step 2: Convert to fraction form
    15,873.02/21,902.88 = 9,158.96/x
  3. Step 3: Cross multiply
    15,873.02x = 21,902.88 × 9,158.96
  4. Step 4: Simplify right side
    15,873.02x = 200,607,601.80
  5. Step 5: Solve for x
    x = 200,607,601.80/15,873.02
  6. Step 6: Final answer
    x = 12,638.28

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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.