Home / 8,721.84-12,036.23-4,742.95

Finding the Fourth Proportional to 8,721.84, 12,036.23 and 4,742.95

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Solution

The fourth proportional to 8,721.84, 12,036.23 and 4,742.95 is: 6,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.84 : 12,036.23 = 4,742.95 : x
  2. Step 2: Convert to fraction form
    8,721.84/12,036.23 = 4,742.95/x
  3. Step 3: Cross multiply
    8,721.84x = 12,036.23 × 4,742.95
  4. Step 4: Simplify right side
    8,721.84x = 57,087,237.19
  5. Step 5: Solve for x
    x = 57,087,237.19/8,721.84
  6. Step 6: Final answer
    x = 6,545.32

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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.