Home / 14,478.02-21,659.64-9,122.60

Finding the Fourth Proportional to 14,478.02, 21,659.64 and 9,122.60

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Solution

The fourth proportional to 14,478.02, 21,659.64 and 9,122.60 is: 13,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.02 : 21,659.64 = 9,122.60 : x
  2. Step 2: Convert to fraction form
    14,478.02/21,659.64 = 9,122.60/x
  3. Step 3: Cross multiply
    14,478.02x = 21,659.64 × 9,122.60
  4. Step 4: Simplify right side
    14,478.02x = 197,592,231.86
  5. Step 5: Solve for x
    x = 197,592,231.86/14,478.02
  6. Step 6: Final answer
    x = 13,647.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.