Home / 9,890.12-14,821.35-5,729.02

Finding the Fourth Proportional to 9,890.12, 14,821.35 and 5,729.02

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Solution

The fourth proportional to 9,890.12, 14,821.35 and 5,729.02 is: 8,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.12 : 14,821.35 = 5,729.02 : x
  2. Step 2: Convert to fraction form
    9,890.12/14,821.35 = 5,729.02/x
  3. Step 3: Cross multiply
    9,890.12x = 14,821.35 × 5,729.02
  4. Step 4: Simplify right side
    9,890.12x = 84,911,752.04
  5. Step 5: Solve for x
    x = 84,911,752.04/9,890.12
  6. Step 6: Final answer
    x = 8,585.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.