Home / 13,312.93-19,971.75-4,545.79

Finding the Fourth Proportional to 13,312.93, 19,971.75 and 4,545.79

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Solution

The fourth proportional to 13,312.93, 19,971.75 and 4,545.79 is: 6,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.93 : 19,971.75 = 4,545.79 : x
  2. Step 2: Convert to fraction form
    13,312.93/19,971.75 = 4,545.79/x
  3. Step 3: Cross multiply
    13,312.93x = 19,971.75 × 4,545.79
  4. Step 4: Simplify right side
    13,312.93x = 90,787,281.57
  5. Step 5: Solve for x
    x = 90,787,281.57/13,312.93
  6. Step 6: Final answer
    x = 6,819.48

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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.