Home / 18,820.16-25,969.92-10,864.94

Finding the Fourth Proportional to 18,820.16, 25,969.92 and 10,864.94

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Solution

The fourth proportional to 18,820.16, 25,969.92 and 10,864.94 is: 14,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.16 : 25,969.92 = 10,864.94 : x
  2. Step 2: Convert to fraction form
    18,820.16/25,969.92 = 10,864.94/x
  3. Step 3: Cross multiply
    18,820.16x = 25,969.92 × 10,864.94
  4. Step 4: Simplify right side
    18,820.16x = 282,161,492.76
  5. Step 5: Solve for x
    x = 282,161,492.76/18,820.16
  6. Step 6: Final answer
    x = 14,992.52

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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.