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Finding the Fourth Proportional to 8,281.01, 12,417.87 and 4,384.51

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Solution

The fourth proportional to 8,281.01, 12,417.87 and 4,384.51 is: 6,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.01 : 12,417.87 = 4,384.51 : x
  2. Step 2: Convert to fraction form
    8,281.01/12,417.87 = 4,384.51/x
  3. Step 3: Cross multiply
    8,281.01x = 12,417.87 × 4,384.51
  4. Step 4: Simplify right side
    8,281.01x = 54,446,275.19
  5. Step 5: Solve for x
    x = 54,446,275.19/8,281.01
  6. Step 6: Final answer
    x = 6,574.84

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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.