Home / 15,570.40-23,323.20-8,636.80

Finding the Fourth Proportional to 15,570.40, 23,323.20 and 8,636.80

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Solution

The fourth proportional to 15,570.40, 23,323.20 and 8,636.80 is: 12,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.40 : 23,323.20 = 8,636.80 : x
  2. Step 2: Convert to fraction form
    15,570.40/23,323.20 = 8,636.80/x
  3. Step 3: Cross multiply
    15,570.40x = 23,323.20 × 8,636.80
  4. Step 4: Simplify right side
    15,570.40x = 201,437,813.76
  5. Step 5: Solve for x
    x = 201,437,813.76/15,570.40
  6. Step 6: Final answer
    x = 12,937.23

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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.