Home / 18,406.32-25,402.59-10,855.14

Finding the Fourth Proportional to 18,406.32, 25,402.59 and 10,855.14

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Solution

The fourth proportional to 18,406.32, 25,402.59 and 10,855.14 is: 14,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.32 : 25,402.59 = 10,855.14 : x
  2. Step 2: Convert to fraction form
    18,406.32/25,402.59 = 10,855.14/x
  3. Step 3: Cross multiply
    18,406.32x = 25,402.59 × 10,855.14
  4. Step 4: Simplify right side
    18,406.32x = 275,748,670.81
  5. Step 5: Solve for x
    x = 275,748,670.81/18,406.32
  6. Step 6: Final answer
    x = 14,981.20

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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.