Home / 8,646.70-11,931.45-4,869.77

Finding the Fourth Proportional to 8,646.70, 11,931.45 and 4,869.77

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Solution

The fourth proportional to 8,646.70, 11,931.45 and 4,869.77 is: 6,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.70 : 11,931.45 = 4,869.77 : x
  2. Step 2: Convert to fraction form
    8,646.70/11,931.45 = 4,869.77/x
  3. Step 3: Cross multiply
    8,646.70x = 11,931.45 × 4,869.77
  4. Step 4: Simplify right side
    8,646.70x = 58,103,417.27
  5. Step 5: Solve for x
    x = 58,103,417.27/8,646.70
  6. Step 6: Final answer
    x = 6,719.72

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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.