Home / 6,870.16-10,279.28-6,319.36

Finding the Fourth Proportional to 6,870.16, 10,279.28 and 6,319.36

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Solution

The fourth proportional to 6,870.16, 10,279.28 and 6,319.36 is: 9,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.16 : 10,279.28 = 6,319.36 : x
  2. Step 2: Convert to fraction form
    6,870.16/10,279.28 = 6,319.36/x
  3. Step 3: Cross multiply
    6,870.16x = 10,279.28 × 6,319.36
  4. Step 4: Simplify right side
    6,870.16x = 64,958,470.86
  5. Step 5: Solve for x
    x = 64,958,470.86/6,870.16
  6. Step 6: Final answer
    x = 9,455.16

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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.