Home / 14,680.28-20,259.78-8,307.92

Finding the Fourth Proportional to 14,680.28, 20,259.78 and 8,307.92

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Solution

The fourth proportional to 14,680.28, 20,259.78 and 8,307.92 is: 11,465.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680.28 : 20,259.78 = 8,307.92 : x
  2. Step 2: Convert to fraction form
    14,680.28/20,259.78 = 8,307.92/x
  3. Step 3: Cross multiply
    14,680.28x = 20,259.78 × 8,307.92
  4. Step 4: Simplify right side
    14,680.28x = 168,316,631.46
  5. Step 5: Solve for x
    x = 168,316,631.46/14,680.28
  6. Step 6: Final answer
    x = 11,465.49

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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.