Home / 15,670.02-21,621.14-8,953.50

Finding the Fourth Proportional to 15,670.02, 21,621.14 and 8,953.50

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Solution

The fourth proportional to 15,670.02, 21,621.14 and 8,953.50 is: 12,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.02 : 21,621.14 = 8,953.50 : x
  2. Step 2: Convert to fraction form
    15,670.02/21,621.14 = 8,953.50/x
  3. Step 3: Cross multiply
    15,670.02x = 21,621.14 × 8,953.50
  4. Step 4: Simplify right side
    15,670.02x = 193,584,876.99
  5. Step 5: Solve for x
    x = 193,584,876.99/15,670.02
  6. Step 6: Final answer
    x = 12,353.84

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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.