Home / 13,573.28-18,740.28-8,476.58

Finding the Fourth Proportional to 13,573.28, 18,740.28 and 8,476.58

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Solution

The fourth proportional to 13,573.28, 18,740.28 and 8,476.58 is: 11,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.28 : 18,740.28 = 8,476.58 : x
  2. Step 2: Convert to fraction form
    13,573.28/18,740.28 = 8,476.58/x
  3. Step 3: Cross multiply
    13,573.28x = 18,740.28 × 8,476.58
  4. Step 4: Simplify right side
    13,573.28x = 158,853,482.64
  5. Step 5: Solve for x
    x = 158,853,482.64/13,573.28
  6. Step 6: Final answer
    x = 11,703.40

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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.