Home / 11,258.30-15,534.78-6,781.16

Finding the Fourth Proportional to 11,258.30, 15,534.78 and 6,781.16

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Solution

The fourth proportional to 11,258.30, 15,534.78 and 6,781.16 is: 9,356.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.30 : 15,534.78 = 6,781.16 : x
  2. Step 2: Convert to fraction form
    11,258.30/15,534.78 = 6,781.16/x
  3. Step 3: Cross multiply
    11,258.30x = 15,534.78 × 6,781.16
  4. Step 4: Simplify right side
    11,258.30x = 105,343,828.74
  5. Step 5: Solve for x
    x = 105,343,828.74/11,258.30
  6. Step 6: Final answer
    x = 9,356.99

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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.