Home / 18,621.28-25,697.51-10,663.35

Finding the Fourth Proportional to 18,621.28, 25,697.51 and 10,663.35

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Solution

The fourth proportional to 18,621.28, 25,697.51 and 10,663.35 is: 14,715.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.28 : 25,697.51 = 10,663.35 : x
  2. Step 2: Convert to fraction form
    18,621.28/25,697.51 = 10,663.35/x
  3. Step 3: Cross multiply
    18,621.28x = 25,697.51 × 10,663.35
  4. Step 4: Simplify right side
    18,621.28x = 274,021,543.26
  5. Step 5: Solve for x
    x = 274,021,543.26/18,621.28
  6. Step 6: Final answer
    x = 14,715.51

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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.