Home / 8,807.65-12,154.18-5,272.81

Finding the Fourth Proportional to 8,807.65, 12,154.18 and 5,272.81

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Solution

The fourth proportional to 8,807.65, 12,154.18 and 5,272.81 is: 7,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.65 : 12,154.18 = 5,272.81 : x
  2. Step 2: Convert to fraction form
    8,807.65/12,154.18 = 5,272.81/x
  3. Step 3: Cross multiply
    8,807.65x = 12,154.18 × 5,272.81
  4. Step 4: Simplify right side
    8,807.65x = 64,086,681.85
  5. Step 5: Solve for x
    x = 64,086,681.85/8,807.65
  6. Step 6: Final answer
    x = 7,276.25

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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.