Home / 15,656.02-21,606.81-8,942.65

Finding the Fourth Proportional to 15,656.02, 21,606.81 and 8,942.65

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Solution

The fourth proportional to 15,656.02, 21,606.81 and 8,942.65 is: 12,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.02 : 21,606.81 = 8,942.65 : x
  2. Step 2: Convert to fraction form
    15,656.02/21,606.81 = 8,942.65/x
  3. Step 3: Cross multiply
    15,656.02x = 21,606.81 × 8,942.65
  4. Step 4: Simplify right side
    15,656.02x = 193,222,094.73
  5. Step 5: Solve for x
    x = 193,222,094.73/15,656.02
  6. Step 6: Final answer
    x = 12,341.71

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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.