Home / 9,624.21-13,281.48-5,645.40

Finding the Fourth Proportional to 9,624.21, 13,281.48 and 5,645.40

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Solution

The fourth proportional to 9,624.21, 13,281.48 and 5,645.40 is: 7,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,624.21 : 13,281.48 = 5,645.40 : x
  2. Step 2: Convert to fraction form
    9,624.21/13,281.48 = 5,645.40/x
  3. Step 3: Cross multiply
    9,624.21x = 13,281.48 × 5,645.40
  4. Step 4: Simplify right side
    9,624.21x = 74,979,267.19
  5. Step 5: Solve for x
    x = 74,979,267.19/9,624.21
  6. Step 6: Final answer
    x = 7,790.69

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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.