Home / 9,320.70-12,862.19-5,339.05

Finding the Fourth Proportional to 9,320.70, 12,862.19 and 5,339.05

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Solution

The fourth proportional to 9,320.70, 12,862.19 and 5,339.05 is: 7,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.70 : 12,862.19 = 5,339.05 : x
  2. Step 2: Convert to fraction form
    9,320.70/12,862.19 = 5,339.05/x
  3. Step 3: Cross multiply
    9,320.70x = 12,862.19 × 5,339.05
  4. Step 4: Simplify right side
    9,320.70x = 68,671,856.71
  5. Step 5: Solve for x
    x = 68,671,856.71/9,320.70
  6. Step 6: Final answer
    x = 7,367.67

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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.