Home / 10,709.20-16,071.04-4,866.40

Finding the Fourth Proportional to 10,709.20, 16,071.04 and 4,866.40

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Solution

The fourth proportional to 10,709.20, 16,071.04 and 4,866.40 is: 7,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.20 : 16,071.04 = 4,866.40 : x
  2. Step 2: Convert to fraction form
    10,709.20/16,071.04 = 4,866.40/x
  3. Step 3: Cross multiply
    10,709.20x = 16,071.04 × 4,866.40
  4. Step 4: Simplify right side
    10,709.20x = 78,208,109.06
  5. Step 5: Solve for x
    x = 78,208,109.06/10,709.20
  6. Step 6: Final answer
    x = 7,302.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.