Home / 9,680.12-13,360.56-5,702.21

Finding the Fourth Proportional to 9,680.12, 13,360.56 and 5,702.21

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Solution

The fourth proportional to 9,680.12, 13,360.56 and 5,702.21 is: 7,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,680.12 : 13,360.56 = 5,702.21 : x
  2. Step 2: Convert to fraction form
    9,680.12/13,360.56 = 5,702.21/x
  3. Step 3: Cross multiply
    9,680.12x = 13,360.56 × 5,702.21
  4. Step 4: Simplify right side
    9,680.12x = 76,184,652.03
  5. Step 5: Solve for x
    x = 76,184,652.03/9,680.12
  6. Step 6: Final answer
    x = 7,870.22

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Half scale
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Double scale
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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.