Home / 18,518.17-25,555.28-10,560.87

Finding the Fourth Proportional to 18,518.17, 25,555.28 and 10,560.87

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Solution

The fourth proportional to 18,518.17, 25,555.28 and 10,560.87 is: 14,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.17 : 25,555.28 = 10,560.87 : x
  2. Step 2: Convert to fraction form
    18,518.17/25,555.28 = 10,560.87/x
  3. Step 3: Cross multiply
    18,518.17x = 25,555.28 × 10,560.87
  4. Step 4: Simplify right side
    18,518.17x = 269,885,989.89
  5. Step 5: Solve for x
    x = 269,885,989.89/18,518.17
  6. Step 6: Final answer
    x = 14,574.12

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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.