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Finding the Fourth Proportional to 15,071.00, 20,798.23 and 8,356.91

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Solution

The fourth proportional to 15,071.00, 20,798.23 and 8,356.91 is: 11,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.00 : 20,798.23 = 8,356.91 : x
  2. Step 2: Convert to fraction form
    15,071.00/20,798.23 = 8,356.91/x
  3. Step 3: Cross multiply
    15,071.00x = 20,798.23 × 8,356.91
  4. Step 4: Simplify right side
    15,071.00x = 173,808,972.71
  5. Step 5: Solve for x
    x = 173,808,972.71/15,071.00
  6. Step 6: Final answer
    x = 11,532.68

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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.