Home / 15,701.04-21,667.14-8,627.58

Finding the Fourth Proportional to 15,701.04, 21,667.14 and 8,627.58

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Solution

The fourth proportional to 15,701.04, 21,667.14 and 8,627.58 is: 11,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.04 : 21,667.14 = 8,627.58 : x
  2. Step 2: Convert to fraction form
    15,701.04/21,667.14 = 8,627.58/x
  3. Step 3: Cross multiply
    15,701.04x = 21,667.14 × 8,627.58
  4. Step 4: Simplify right side
    15,701.04x = 186,934,983.72
  5. Step 5: Solve for x
    x = 186,934,983.72/15,701.04
  6. Step 6: Final answer
    x = 11,905.90

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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.