Home / 7,124.90-10,689.37-6,239.16

Finding the Fourth Proportional to 7,124.90, 10,689.37 and 6,239.16

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Solution

The fourth proportional to 7,124.90, 10,689.37 and 6,239.16 is: 9,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.90 : 10,689.37 = 6,239.16 : x
  2. Step 2: Convert to fraction form
    7,124.90/10,689.37 = 6,239.16/x
  3. Step 3: Cross multiply
    7,124.90x = 10,689.37 × 6,239.16
  4. Step 4: Simplify right side
    7,124.90x = 66,692,674.13
  5. Step 5: Solve for x
    x = 66,692,674.13/7,124.90
  6. Step 6: Final answer
    x = 9,360.51

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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.