Home / 9,818.48-13,530.84-7,019.12

Finding the Fourth Proportional to 9,818.48, 13,530.84 and 7,019.12

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Solution

The fourth proportional to 9,818.48, 13,530.84 and 7,019.12 is: 9,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.48 : 13,530.84 = 7,019.12 : x
  2. Step 2: Convert to fraction form
    9,818.48/13,530.84 = 7,019.12/x
  3. Step 3: Cross multiply
    9,818.48x = 13,530.84 × 7,019.12
  4. Step 4: Simplify right side
    9,818.48x = 94,974,589.66
  5. Step 5: Solve for x
    x = 94,974,589.66/9,818.48
  6. Step 6: Final answer
    x = 9,673.04

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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.