Home / 9,020.81-12,448.64-4,987.91

Finding the Fourth Proportional to 9,020.81, 12,448.64 and 4,987.91

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Solution

The fourth proportional to 9,020.81, 12,448.64 and 4,987.91 is: 6,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.81 : 12,448.64 = 4,987.91 : x
  2. Step 2: Convert to fraction form
    9,020.81/12,448.64 = 4,987.91/x
  3. Step 3: Cross multiply
    9,020.81x = 12,448.64 × 4,987.91
  4. Step 4: Simplify right side
    9,020.81x = 62,092,671.00
  5. Step 5: Solve for x
    x = 62,092,671.00/9,020.81
  6. Step 6: Final answer
    x = 6,883.27

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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.