Home / 8,681.02-11,979.74-4,702.04

Finding the Fourth Proportional to 8,681.02, 11,979.74 and 4,702.04

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Solution

The fourth proportional to 8,681.02, 11,979.74 and 4,702.04 is: 6,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.02 : 11,979.74 = 4,702.04 : x
  2. Step 2: Convert to fraction form
    8,681.02/11,979.74 = 4,702.04/x
  3. Step 3: Cross multiply
    8,681.02x = 11,979.74 × 4,702.04
  4. Step 4: Simplify right side
    8,681.02x = 56,329,216.67
  5. Step 5: Solve for x
    x = 56,329,216.67/8,681.02
  6. Step 6: Final answer
    x = 6,488.78

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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.