Home / 13,450.01-18,560.61-7,785.68

Finding the Fourth Proportional to 13,450.01, 18,560.61 and 7,785.68

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Solution

The fourth proportional to 13,450.01, 18,560.61 and 7,785.68 is: 10,744.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.01 : 18,560.61 = 7,785.68 : x
  2. Step 2: Convert to fraction form
    13,450.01/18,560.61 = 7,785.68/x
  3. Step 3: Cross multiply
    13,450.01x = 18,560.61 × 7,785.68
  4. Step 4: Simplify right side
    13,450.01x = 144,506,970.06
  5. Step 5: Solve for x
    x = 144,506,970.06/13,450.01
  6. Step 6: Final answer
    x = 10,744.00

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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.