Home / 15,457.06-21,333.93-8,742.97

Finding the Fourth Proportional to 15,457.06, 21,333.93 and 8,742.97

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Solution

The fourth proportional to 15,457.06, 21,333.93 and 8,742.97 is: 12,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.06 : 21,333.93 = 8,742.97 : x
  2. Step 2: Convert to fraction form
    15,457.06/21,333.93 = 8,742.97/x
  3. Step 3: Cross multiply
    15,457.06x = 21,333.93 × 8,742.97
  4. Step 4: Simplify right side
    15,457.06x = 186,521,856.64
  5. Step 5: Solve for x
    x = 186,521,856.64/15,457.06
  6. Step 6: Final answer
    x = 12,067.10

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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.