Home / 10,689.08-16,007.70-7,392.92

Finding the Fourth Proportional to 10,689.08, 16,007.70 and 7,392.92

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Solution

The fourth proportional to 10,689.08, 16,007.70 and 7,392.92 is: 11,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.08 : 16,007.70 = 7,392.92 : x
  2. Step 2: Convert to fraction form
    10,689.08/16,007.70 = 7,392.92/x
  3. Step 3: Cross multiply
    10,689.08x = 16,007.70 × 7,392.92
  4. Step 4: Simplify right side
    10,689.08x = 118,343,645.48
  5. Step 5: Solve for x
    x = 118,343,645.48/10,689.08
  6. Step 6: Final answer
    x = 11,071.45

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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.