Home / 13,465.62-18,520.74-10,807.20

Finding the Fourth Proportional to 13,465.62, 18,520.74 and 10,807.20

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Solution

The fourth proportional to 13,465.62, 18,520.74 and 10,807.20 is: 14,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.62 : 18,520.74 = 10,807.20 : x
  2. Step 2: Convert to fraction form
    13,465.62/18,520.74 = 10,807.20/x
  3. Step 3: Cross multiply
    13,465.62x = 18,520.74 × 10,807.20
  4. Step 4: Simplify right side
    13,465.62x = 200,157,341.33
  5. Step 5: Solve for x
    x = 200,157,341.33/13,465.62
  6. Step 6: Final answer
    x = 14,864.32

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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.