Home / 10,971.45-15,140.51-6,255.63

Finding the Fourth Proportional to 10,971.45, 15,140.51 and 6,255.63

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Solution

The fourth proportional to 10,971.45, 15,140.51 and 6,255.63 is: 8,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.45 : 15,140.51 = 6,255.63 : x
  2. Step 2: Convert to fraction form
    10,971.45/15,140.51 = 6,255.63/x
  3. Step 3: Cross multiply
    10,971.45x = 15,140.51 × 6,255.63
  4. Step 4: Simplify right side
    10,971.45x = 94,713,428.57
  5. Step 5: Solve for x
    x = 94,713,428.57/10,971.45
  6. Step 6: Final answer
    x = 8,632.72

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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.