Home / 8,646.41-11,931.86-4,869.56

Finding the Fourth Proportional to 8,646.41, 11,931.86 and 4,869.56

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Solution

The fourth proportional to 8,646.41, 11,931.86 and 4,869.56 is: 6,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.41 : 11,931.86 = 4,869.56 : x
  2. Step 2: Convert to fraction form
    8,646.41/11,931.86 = 4,869.56/x
  3. Step 3: Cross multiply
    8,646.41x = 11,931.86 × 4,869.56
  4. Step 4: Simplify right side
    8,646.41x = 58,102,950.19
  5. Step 5: Solve for x
    x = 58,102,950.19/8,646.41
  6. Step 6: Final answer
    x = 6,719.89

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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.