Home / 12,970.13-17,877.84-11,264.27

Finding the Fourth Proportional to 12,970.13, 17,877.84 and 11,264.27

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Solution

The fourth proportional to 12,970.13, 17,877.84 and 11,264.27 is: 15,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.13 : 17,877.84 = 11,264.27 : x
  2. Step 2: Convert to fraction form
    12,970.13/17,877.84 = 11,264.27/x
  3. Step 3: Cross multiply
    12,970.13x = 17,877.84 × 11,264.27
  4. Step 4: Simplify right side
    12,970.13x = 201,380,816.78
  5. Step 5: Solve for x
    x = 201,380,816.78/12,970.13
  6. Step 6: Final answer
    x = 15,526.51

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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.