Home / 8,607.28-11,877.04-4,830.40

Finding the Fourth Proportional to 8,607.28, 11,877.04 and 4,830.40

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Solution

The fourth proportional to 8,607.28, 11,877.04 and 4,830.40 is: 6,665.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.28 : 11,877.04 = 4,830.40 : x
  2. Step 2: Convert to fraction form
    8,607.28/11,877.04 = 4,830.40/x
  3. Step 3: Cross multiply
    8,607.28x = 11,877.04 × 4,830.40
  4. Step 4: Simplify right side
    8,607.28x = 57,370,854.02
  5. Step 5: Solve for x
    x = 57,370,854.02/8,607.28
  6. Step 6: Final answer
    x = 6,665.39

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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.