Home / 15,684.84-23,502.96-12,389.76

Finding the Fourth Proportional to 15,684.84, 23,502.96 and 12,389.76

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Solution

The fourth proportional to 15,684.84, 23,502.96 and 12,389.76 is: 18,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.84 : 23,502.96 = 12,389.76 : x
  2. Step 2: Convert to fraction form
    15,684.84/23,502.96 = 12,389.76/x
  3. Step 3: Cross multiply
    15,684.84x = 23,502.96 × 12,389.76
  4. Step 4: Simplify right side
    15,684.84x = 291,196,033.69
  5. Step 5: Solve for x
    x = 291,196,033.69/15,684.84
  6. Step 6: Final answer
    x = 18,565.44

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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.