Home / 9,363.19-12,920.97-5,384.21

Finding the Fourth Proportional to 9,363.19, 12,920.97 and 5,384.21

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Solution

The fourth proportional to 9,363.19, 12,920.97 and 5,384.21 is: 7,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.19 : 12,920.97 = 5,384.21 : x
  2. Step 2: Convert to fraction form
    9,363.19/12,920.97 = 5,384.21/x
  3. Step 3: Cross multiply
    9,363.19x = 12,920.97 × 5,384.21
  4. Step 4: Simplify right side
    9,363.19x = 69,569,215.88
  5. Step 5: Solve for x
    x = 69,569,215.88/9,363.19
  6. Step 6: Final answer
    x = 7,430.08

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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.