Home / 18,430.64-25,432.94-11,357.18

Finding the Fourth Proportional to 18,430.64, 25,432.94 and 11,357.18

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Solution

The fourth proportional to 18,430.64, 25,432.94 and 11,357.18 is: 15,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.64 : 25,432.94 = 11,357.18 : x
  2. Step 2: Convert to fraction form
    18,430.64/25,432.94 = 11,357.18/x
  3. Step 3: Cross multiply
    18,430.64x = 25,432.94 × 11,357.18
  4. Step 4: Simplify right side
    18,430.64x = 288,846,477.51
  5. Step 5: Solve for x
    x = 288,846,477.51/18,430.64
  6. Step 6: Final answer
    x = 15,672.08

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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.