Home / 15,621.36-23,432.76-8,690.64

Finding the Fourth Proportional to 15,621.36, 23,432.76 and 8,690.64

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Solution

The fourth proportional to 15,621.36, 23,432.76 and 8,690.64 is: 13,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.36 : 23,432.76 = 8,690.64 : x
  2. Step 2: Convert to fraction form
    15,621.36/23,432.76 = 8,690.64/x
  3. Step 3: Cross multiply
    15,621.36x = 23,432.76 × 8,690.64
  4. Step 4: Simplify right side
    15,621.36x = 203,645,681.37
  5. Step 5: Solve for x
    x = 203,645,681.37/15,621.36
  6. Step 6: Final answer
    x = 13,036.36

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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.