Home / 18,312.18-25,270.64-10,355.96

Finding the Fourth Proportional to 18,312.18, 25,270.64 and 10,355.96

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Solution

The fourth proportional to 18,312.18, 25,270.64 and 10,355.96 is: 14,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.18 : 25,270.64 = 10,355.96 : x
  2. Step 2: Convert to fraction form
    18,312.18/25,270.64 = 10,355.96/x
  3. Step 3: Cross multiply
    18,312.18x = 25,270.64 × 10,355.96
  4. Step 4: Simplify right side
    18,312.18x = 261,701,737.01
  5. Step 5: Solve for x
    x = 261,701,737.01/18,312.18
  6. Step 6: Final answer
    x = 14,291.13

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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.