Home / 15,700.45-21,666.37-8,626.72

Finding the Fourth Proportional to 15,700.45, 21,666.37 and 8,626.72

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Solution

The fourth proportional to 15,700.45, 21,666.37 and 8,626.72 is: 11,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.45 : 21,666.37 = 8,626.72 : x
  2. Step 2: Convert to fraction form
    15,700.45/21,666.37 = 8,626.72/x
  3. Step 3: Cross multiply
    15,700.45x = 21,666.37 × 8,626.72
  4. Step 4: Simplify right side
    15,700.45x = 186,909,631.67
  5. Step 5: Solve for x
    x = 186,909,631.67/15,700.45
  6. Step 6: Final answer
    x = 11,904.73

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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.