Home / 15,325.24-21,148.80-8,956.24

Finding the Fourth Proportional to 15,325.24, 21,148.80 and 8,956.24

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Solution

The fourth proportional to 15,325.24, 21,148.80 and 8,956.24 is: 12,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.24 : 21,148.80 = 8,956.24 : x
  2. Step 2: Convert to fraction form
    15,325.24/21,148.80 = 8,956.24/x
  3. Step 3: Cross multiply
    15,325.24x = 21,148.80 × 8,956.24
  4. Step 4: Simplify right side
    15,325.24x = 189,413,728.51
  5. Step 5: Solve for x
    x = 189,413,728.51/15,325.24
  6. Step 6: Final answer
    x = 12,359.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.