Home / 15,299.24-21,113.88-8,585.42

Finding the Fourth Proportional to 15,299.24, 21,113.88 and 8,585.42

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Solution

The fourth proportional to 15,299.24, 21,113.88 and 8,585.42 is: 11,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.24 : 21,113.88 = 8,585.42 : x
  2. Step 2: Convert to fraction form
    15,299.24/21,113.88 = 8,585.42/x
  3. Step 3: Cross multiply
    15,299.24x = 21,113.88 × 8,585.42
  4. Step 4: Simplify right side
    15,299.24x = 181,271,527.63
  5. Step 5: Solve for x
    x = 181,271,527.63/15,299.24
  6. Step 6: Final answer
    x = 11,848.40

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Double scale
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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.