Home / 9,785.23-13,503.40-5,535.72

Finding the Fourth Proportional to 9,785.23, 13,503.40 and 5,535.72

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Solution

The fourth proportional to 9,785.23, 13,503.40 and 5,535.72 is: 7,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.23 : 13,503.40 = 5,535.72 : x
  2. Step 2: Convert to fraction form
    9,785.23/13,503.40 = 5,535.72/x
  3. Step 3: Cross multiply
    9,785.23x = 13,503.40 × 5,535.72
  4. Step 4: Simplify right side
    9,785.23x = 74,751,027.61
  5. Step 5: Solve for x
    x = 74,751,027.61/9,785.23
  6. Step 6: Final answer
    x = 7,639.17

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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.