Home / 15,700.62-21,666.90-8,627.40

Finding the Fourth Proportional to 15,700.62, 21,666.90 and 8,627.40

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Solution

The fourth proportional to 15,700.62, 21,666.90 and 8,627.40 is: 11,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.62 : 21,666.90 = 8,627.40 : x
  2. Step 2: Convert to fraction form
    15,700.62/21,666.90 = 8,627.40/x
  3. Step 3: Cross multiply
    15,700.62x = 21,666.90 × 8,627.40
  4. Step 4: Simplify right side
    15,700.62x = 186,929,013.06
  5. Step 5: Solve for x
    x = 186,929,013.06/15,700.62
  6. Step 6: Final answer
    x = 11,905.84

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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.