Home / 8,455.41-11,670.35-5,315.85

Finding the Fourth Proportional to 8,455.41, 11,670.35 and 5,315.85

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Solution

The fourth proportional to 8,455.41, 11,670.35 and 5,315.85 is: 7,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.41 : 11,670.35 = 5,315.85 : x
  2. Step 2: Convert to fraction form
    8,455.41/11,670.35 = 5,315.85/x
  3. Step 3: Cross multiply
    8,455.41x = 11,670.35 × 5,315.85
  4. Step 4: Simplify right side
    8,455.41x = 62,037,803.47
  5. Step 5: Solve for x
    x = 62,037,803.47/8,455.41
  6. Step 6: Final answer
    x = 7,337.05

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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.