Home / 11,187.72-15,439.47-6,152.39

Finding the Fourth Proportional to 11,187.72, 15,439.47 and 6,152.39

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Solution

The fourth proportional to 11,187.72, 15,439.47 and 6,152.39 is: 8,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.72 : 15,439.47 = 6,152.39 : x
  2. Step 2: Convert to fraction form
    11,187.72/15,439.47 = 6,152.39/x
  3. Step 3: Cross multiply
    11,187.72x = 15,439.47 × 6,152.39
  4. Step 4: Simplify right side
    11,187.72x = 94,989,586.71
  5. Step 5: Solve for x
    x = 94,989,586.71/11,187.72
  6. Step 6: Final answer
    x = 8,490.52

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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.