Home / 15,700.43-21,666.59-8,627.31

Finding the Fourth Proportional to 15,700.43, 21,666.59 and 8,627.31

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Solution

The fourth proportional to 15,700.43, 21,666.59 and 8,627.31 is: 11,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.43 : 21,666.59 = 8,627.31 : x
  2. Step 2: Convert to fraction form
    15,700.43/21,666.59 = 8,627.31/x
  3. Step 3: Cross multiply
    15,700.43x = 21,666.59 × 8,627.31
  4. Step 4: Simplify right side
    15,700.43x = 186,924,237.10
  5. Step 5: Solve for x
    x = 186,924,237.10/15,700.43
  6. Step 6: Final answer
    x = 11,905.68

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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.