Home / 10,920.19-15,071.48-6,673.69

Finding the Fourth Proportional to 10,920.19, 15,071.48 and 6,673.69

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Solution

The fourth proportional to 10,920.19, 15,071.48 and 6,673.69 is: 9,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.19 : 15,071.48 = 6,673.69 : x
  2. Step 2: Convert to fraction form
    10,920.19/15,071.48 = 6,673.69/x
  3. Step 3: Cross multiply
    10,920.19x = 15,071.48 × 6,673.69
  4. Step 4: Simplify right side
    10,920.19x = 100,582,385.36
  5. Step 5: Solve for x
    x = 100,582,385.36/10,920.19
  6. Step 6: Final answer
    x = 9,210.68

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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.