Home / 15,420.66-23,136.18-4,892.40

Finding the Fourth Proportional to 15,420.66, 23,136.18 and 4,892.40

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Solution

The fourth proportional to 15,420.66, 23,136.18 and 4,892.40 is: 7,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.66 : 23,136.18 = 4,892.40 : x
  2. Step 2: Convert to fraction form
    15,420.66/23,136.18 = 4,892.40/x
  3. Step 3: Cross multiply
    15,420.66x = 23,136.18 × 4,892.40
  4. Step 4: Simplify right side
    15,420.66x = 113,191,447.03
  5. Step 5: Solve for x
    x = 113,191,447.03/15,420.66
  6. Step 6: Final answer
    x = 7,340.25

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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.