Home / 15,071.77-20,798.73-8,357.28

Finding the Fourth Proportional to 15,071.77, 20,798.73 and 8,357.28

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Solution

The fourth proportional to 15,071.77, 20,798.73 and 8,357.28 is: 11,532.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.77 : 20,798.73 = 8,357.28 : x
  2. Step 2: Convert to fraction form
    15,071.77/20,798.73 = 8,357.28/x
  3. Step 3: Cross multiply
    15,071.77x = 20,798.73 × 8,357.28
  4. Step 4: Simplify right side
    15,071.77x = 173,820,810.25
  5. Step 5: Solve for x
    x = 173,820,810.25/15,071.77
  6. Step 6: Final answer
    x = 11,532.87

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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.