Home / 9,368.70-12,928.77-5,176.95

Finding the Fourth Proportional to 9,368.70, 12,928.77 and 5,176.95

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Solution

The fourth proportional to 9,368.70, 12,928.77 and 5,176.95 is: 7,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.70 : 12,928.77 = 5,176.95 : x
  2. Step 2: Convert to fraction form
    9,368.70/12,928.77 = 5,176.95/x
  3. Step 3: Cross multiply
    9,368.70x = 12,928.77 × 5,176.95
  4. Step 4: Simplify right side
    9,368.70x = 66,931,595.85
  5. Step 5: Solve for x
    x = 66,931,595.85/9,368.70
  6. Step 6: Final answer
    x = 7,144.17

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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.