Home / 7,319.28-10,068.70-6,418.97

Finding the Fourth Proportional to 7,319.28, 10,068.70 and 6,418.97

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Solution

The fourth proportional to 7,319.28, 10,068.70 and 6,418.97 is: 8,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.28 : 10,068.70 = 6,418.97 : x
  2. Step 2: Convert to fraction form
    7,319.28/10,068.70 = 6,418.97/x
  3. Step 3: Cross multiply
    7,319.28x = 10,068.70 × 6,418.97
  4. Step 4: Simplify right side
    7,319.28x = 64,630,683.24
  5. Step 5: Solve for x
    x = 64,630,683.24/7,319.28
  6. Step 6: Final answer
    x = 8,830.20

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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.