Home / 13,498.43-18,619.81-10,509.53

Finding the Fourth Proportional to 13,498.43, 18,619.81 and 10,509.53

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Solution

The fourth proportional to 13,498.43, 18,619.81 and 10,509.53 is: 14,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.43 : 18,619.81 = 10,509.53 : x
  2. Step 2: Convert to fraction form
    13,498.43/18,619.81 = 10,509.53/x
  3. Step 3: Cross multiply
    13,498.43x = 18,619.81 × 10,509.53
  4. Step 4: Simplify right side
    13,498.43x = 195,685,332.42
  5. Step 5: Solve for x
    x = 195,685,332.42/13,498.43
  6. Step 6: Final answer
    x = 14,496.90

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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.