Home / 8,901.40-12,282.93-4,921.51

Finding the Fourth Proportional to 8,901.40, 12,282.93 and 4,921.51

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Solution

The fourth proportional to 8,901.40, 12,282.93 and 4,921.51 is: 6,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.40 : 12,282.93 = 4,921.51 : x
  2. Step 2: Convert to fraction form
    8,901.40/12,282.93 = 4,921.51/x
  3. Step 3: Cross multiply
    8,901.40x = 12,282.93 × 4,921.51
  4. Step 4: Simplify right side
    8,901.40x = 60,450,562.82
  5. Step 5: Solve for x
    x = 60,450,562.82/8,901.40
  6. Step 6: Final answer
    x = 6,791.13

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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.