Home / 9,870.60-13,617.12-6,283.65

Finding the Fourth Proportional to 9,870.60, 13,617.12 and 6,283.65

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Solution

The fourth proportional to 9,870.60, 13,617.12 and 6,283.65 is: 8,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,870.60 : 13,617.12 = 6,283.65 : x
  2. Step 2: Convert to fraction form
    9,870.60/13,617.12 = 6,283.65/x
  3. Step 3: Cross multiply
    9,870.60x = 13,617.12 × 6,283.65
  4. Step 4: Simplify right side
    9,870.60x = 85,565,216.09
  5. Step 5: Solve for x
    x = 85,565,216.09/9,870.60
  6. Step 6: Final answer
    x = 8,668.69

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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.