Home / 9,972.64-14,960.88-4,778.08

Finding the Fourth Proportional to 9,972.64, 14,960.88 and 4,778.08

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Solution

The fourth proportional to 9,972.64, 14,960.88 and 4,778.08 is: 7,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,972.64 : 14,960.88 = 4,778.08 : x
  2. Step 2: Convert to fraction form
    9,972.64/14,960.88 = 4,778.08/x
  3. Step 3: Cross multiply
    9,972.64x = 14,960.88 × 4,778.08
  4. Step 4: Simplify right side
    9,972.64x = 71,484,281.51
  5. Step 5: Solve for x
    x = 71,484,281.51/9,972.64
  6. Step 6: Final answer
    x = 7,168.04

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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.