Home / 9,659.40-13,333.14-5,680.32

Finding the Fourth Proportional to 9,659.40, 13,333.14 and 5,680.32

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Solution

The fourth proportional to 9,659.40, 13,333.14 and 5,680.32 is: 7,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659.40 : 13,333.14 = 5,680.32 : x
  2. Step 2: Convert to fraction form
    9,659.40/13,333.14 = 5,680.32/x
  3. Step 3: Cross multiply
    9,659.40x = 13,333.14 × 5,680.32
  4. Step 4: Simplify right side
    9,659.40x = 75,736,501.80
  5. Step 5: Solve for x
    x = 75,736,501.80/9,659.40
  6. Step 6: Final answer
    x = 7,840.70

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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.