Home / 12,545.36-17,312.72-6,956.40

Finding the Fourth Proportional to 12,545.36, 17,312.72 and 6,956.40

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Solution

The fourth proportional to 12,545.36, 17,312.72 and 6,956.40 is: 9,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.36 : 17,312.72 = 6,956.40 : x
  2. Step 2: Convert to fraction form
    12,545.36/17,312.72 = 6,956.40/x
  3. Step 3: Cross multiply
    12,545.36x = 17,312.72 × 6,956.40
  4. Step 4: Simplify right side
    12,545.36x = 120,434,205.41
  5. Step 5: Solve for x
    x = 120,434,205.41/12,545.36
  6. Step 6: Final answer
    x = 9,599.90

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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.