Home / 12,931.07-17,824.65-10,813.64

Finding the Fourth Proportional to 12,931.07, 17,824.65 and 10,813.64

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Solution

The fourth proportional to 12,931.07, 17,824.65 and 10,813.64 is: 14,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.07 : 17,824.65 = 10,813.64 : x
  2. Step 2: Convert to fraction form
    12,931.07/17,824.65 = 10,813.64/x
  3. Step 3: Cross multiply
    12,931.07x = 17,824.65 × 10,813.64
  4. Step 4: Simplify right side
    12,931.07x = 192,749,348.23
  5. Step 5: Solve for x
    x = 192,749,348.23/12,931.07
  6. Step 6: Final answer
    x = 14,905.91

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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.