Home / 10,421.89-15,632.86-2,630.70

Finding the Fourth Proportional to 10,421.89, 15,632.86 and 2,630.70

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Solution

The fourth proportional to 10,421.89, 15,632.86 and 2,630.70 is: 3,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.89 : 15,632.86 = 2,630.70 : x
  2. Step 2: Convert to fraction form
    10,421.89/15,632.86 = 2,630.70/x
  3. Step 3: Cross multiply
    10,421.89x = 15,632.86 × 2,630.70
  4. Step 4: Simplify right side
    10,421.89x = 41,125,364.80
  5. Step 5: Solve for x
    x = 41,125,364.80/10,421.89
  6. Step 6: Final answer
    x = 3,946.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.