Home / 11,378.45-15,700.36-6,341.57

Finding the Fourth Proportional to 11,378.45, 15,700.36 and 6,341.57

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Solution

The fourth proportional to 11,378.45, 15,700.36 and 6,341.57 is: 8,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.45 : 15,700.36 = 6,341.57 : x
  2. Step 2: Convert to fraction form
    11,378.45/15,700.36 = 6,341.57/x
  3. Step 3: Cross multiply
    11,378.45x = 15,700.36 × 6,341.57
  4. Step 4: Simplify right side
    11,378.45x = 99,564,931.97
  5. Step 5: Solve for x
    x = 99,564,931.97/11,378.45
  6. Step 6: Final answer
    x = 8,750.31

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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.