Home / 11,151.40-15,388.98-6,116.06

Finding the Fourth Proportional to 11,151.40, 15,388.98 and 6,116.06

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Solution

The fourth proportional to 11,151.40, 15,388.98 and 6,116.06 is: 8,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.40 : 15,388.98 = 6,116.06 : x
  2. Step 2: Convert to fraction form
    11,151.40/15,388.98 = 6,116.06/x
  3. Step 3: Cross multiply
    11,151.40x = 15,388.98 × 6,116.06
  4. Step 4: Simplify right side
    11,151.40x = 94,119,925.02
  5. Step 5: Solve for x
    x = 94,119,925.02/11,151.40
  6. Step 6: Final answer
    x = 8,440.19

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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.