Home / 18,420.42-25,417.76-10,354.62

Finding the Fourth Proportional to 18,420.42, 25,417.76 and 10,354.62

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Solution

The fourth proportional to 18,420.42, 25,417.76 and 10,354.62 is: 14,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.42 : 25,417.76 = 10,354.62 : x
  2. Step 2: Convert to fraction form
    18,420.42/25,417.76 = 10,354.62/x
  3. Step 3: Cross multiply
    18,420.42x = 25,417.76 × 10,354.62
  4. Step 4: Simplify right side
    18,420.42x = 263,191,194.28
  5. Step 5: Solve for x
    x = 263,191,194.28/18,420.42
  6. Step 6: Final answer
    x = 14,288.01

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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.