Home / 13,251.10-18,281.34-7,582.81

Finding the Fourth Proportional to 13,251.10, 18,281.34 and 7,582.81

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Solution

The fourth proportional to 13,251.10, 18,281.34 and 7,582.81 is: 10,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.10 : 18,281.34 = 7,582.81 : x
  2. Step 2: Convert to fraction form
    13,251.10/18,281.34 = 7,582.81/x
  3. Step 3: Cross multiply
    13,251.10x = 18,281.34 × 7,582.81
  4. Step 4: Simplify right side
    13,251.10x = 138,623,927.77
  5. Step 5: Solve for x
    x = 138,623,927.77/13,251.10
  6. Step 6: Final answer
    x = 10,461.31

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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.