Home / 8,681.23-11,980.12-4,702.35

Finding the Fourth Proportional to 8,681.23, 11,980.12 and 4,702.35

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Solution

The fourth proportional to 8,681.23, 11,980.12 and 4,702.35 is: 6,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.23 : 11,980.12 = 4,702.35 : x
  2. Step 2: Convert to fraction form
    8,681.23/11,980.12 = 4,702.35/x
  3. Step 3: Cross multiply
    8,681.23x = 11,980.12 × 4,702.35
  4. Step 4: Simplify right side
    8,681.23x = 56,334,717.28
  5. Step 5: Solve for x
    x = 56,334,717.28/8,681.23
  6. Step 6: Final answer
    x = 6,489.26

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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.