Home / 9,319.55-12,860.88-5,070.74

Finding the Fourth Proportional to 9,319.55, 12,860.88 and 5,070.74

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Solution

The fourth proportional to 9,319.55, 12,860.88 and 5,070.74 is: 6,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.55 : 12,860.88 = 5,070.74 : x
  2. Step 2: Convert to fraction form
    9,319.55/12,860.88 = 5,070.74/x
  3. Step 3: Cross multiply
    9,319.55x = 12,860.88 × 5,070.74
  4. Step 4: Simplify right side
    9,319.55x = 65,214,178.65
  5. Step 5: Solve for x
    x = 65,214,178.65/9,319.55
  6. Step 6: Final answer
    x = 6,997.57

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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.