Home / 13,403.36-18,496.35-7,434.91

Finding the Fourth Proportional to 13,403.36, 18,496.35 and 7,434.91

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Solution

The fourth proportional to 13,403.36, 18,496.35 and 7,434.91 is: 10,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.36 : 18,496.35 = 7,434.91 : x
  2. Step 2: Convert to fraction form
    13,403.36/18,496.35 = 7,434.91/x
  3. Step 3: Cross multiply
    13,403.36x = 18,496.35 × 7,434.91
  4. Step 4: Simplify right side
    13,403.36x = 137,518,616.66
  5. Step 5: Solve for x
    x = 137,518,616.66/13,403.36
  6. Step 6: Final answer
    x = 10,260.01

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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.