Home / 12,931.92-19,397.84-8,548.40

Finding the Fourth Proportional to 12,931.92, 19,397.84 and 8,548.40

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Solution

The fourth proportional to 12,931.92, 19,397.84 and 8,548.40 is: 12,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.92 : 19,397.84 = 8,548.40 : x
  2. Step 2: Convert to fraction form
    12,931.92/19,397.84 = 8,548.40/x
  3. Step 3: Cross multiply
    12,931.92x = 19,397.84 × 8,548.40
  4. Step 4: Simplify right side
    12,931.92x = 165,820,495.46
  5. Step 5: Solve for x
    x = 165,820,495.46/12,931.92
  6. Step 6: Final answer
    x = 12,822.57

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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.