Home / 12,138.24-16,715.52-10,544.16

Finding the Fourth Proportional to 12,138.24, 16,715.52 and 10,544.16

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Solution

The fourth proportional to 12,138.24, 16,715.52 and 10,544.16 is: 14,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138.24 : 16,715.52 = 10,544.16 : x
  2. Step 2: Convert to fraction form
    12,138.24/16,715.52 = 10,544.16/x
  3. Step 3: Cross multiply
    12,138.24x = 16,715.52 × 10,544.16
  4. Step 4: Simplify right side
    12,138.24x = 176,251,117.36
  5. Step 5: Solve for x
    x = 176,251,117.36/12,138.24
  6. Step 6: Final answer
    x = 14,520.32

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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.