Home / 15,349.04-21,176.88-8,633.60

Finding the Fourth Proportional to 15,349.04, 21,176.88 and 8,633.60

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Solution

The fourth proportional to 15,349.04, 21,176.88 and 8,633.60 is: 11,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.04 : 21,176.88 = 8,633.60 : x
  2. Step 2: Convert to fraction form
    15,349.04/21,176.88 = 8,633.60/x
  3. Step 3: Cross multiply
    15,349.04x = 21,176.88 × 8,633.60
  4. Step 4: Simplify right side
    15,349.04x = 182,832,711.17
  5. Step 5: Solve for x
    x = 182,832,711.17/15,349.04
  6. Step 6: Final answer
    x = 11,911.67

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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.