Home / 11,225.40-15,490.92-6,189.36

Finding the Fourth Proportional to 11,225.40, 15,490.92 and 6,189.36

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Solution

The fourth proportional to 11,225.40, 15,490.92 and 6,189.36 is: 8,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.40 : 15,490.92 = 6,189.36 : x
  2. Step 2: Convert to fraction form
    11,225.40/15,490.92 = 6,189.36/x
  3. Step 3: Cross multiply
    11,225.40x = 15,490.92 × 6,189.36
  4. Step 4: Simplify right side
    11,225.40x = 95,878,880.61
  5. Step 5: Solve for x
    x = 95,878,880.61/11,225.40
  6. Step 6: Final answer
    x = 8,541.24

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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.