Home / 15,756.08-23,636.28-6,990.80

Finding the Fourth Proportional to 15,756.08, 23,636.28 and 6,990.80

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Solution

The fourth proportional to 15,756.08, 23,636.28 and 6,990.80 is: 10,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.08 : 23,636.28 = 6,990.80 : x
  2. Step 2: Convert to fraction form
    15,756.08/23,636.28 = 6,990.80/x
  3. Step 3: Cross multiply
    15,756.08x = 23,636.28 × 6,990.80
  4. Step 4: Simplify right side
    15,756.08x = 165,236,506.22
  5. Step 5: Solve for x
    x = 165,236,506.22/15,756.08
  6. Step 6: Final answer
    x = 10,487.16

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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.