Home / 13,377.89-18,461.84-7,410.08

Finding the Fourth Proportional to 13,377.89, 18,461.84 and 7,410.08

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Solution

The fourth proportional to 13,377.89, 18,461.84 and 7,410.08 is: 10,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.89 : 18,461.84 = 7,410.08 : x
  2. Step 2: Convert to fraction form
    13,377.89/18,461.84 = 7,410.08/x
  3. Step 3: Cross multiply
    13,377.89x = 18,461.84 × 7,410.08
  4. Step 4: Simplify right side
    13,377.89x = 136,803,581.99
  5. Step 5: Solve for x
    x = 136,803,581.99/13,377.89
  6. Step 6: Final answer
    x = 10,226.10

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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.