Home / 11,523.40-15,903.20-6,487.31

Finding the Fourth Proportional to 11,523.40, 15,903.20 and 6,487.31

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Solution

The fourth proportional to 11,523.40, 15,903.20 and 6,487.31 is: 8,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,523.40 : 15,903.20 = 6,487.31 : x
  2. Step 2: Convert to fraction form
    11,523.40/15,903.20 = 6,487.31/x
  3. Step 3: Cross multiply
    11,523.40x = 15,903.20 × 6,487.31
  4. Step 4: Simplify right side
    11,523.40x = 103,169,044.37
  5. Step 5: Solve for x
    x = 103,169,044.37/11,523.40
  6. Step 6: Final answer
    x = 8,953.01

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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.