Home / 13,285.40-19,928.66-4,964.58

Finding the Fourth Proportional to 13,285.40, 19,928.66 and 4,964.58

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Solution

The fourth proportional to 13,285.40, 19,928.66 and 4,964.58 is: 7,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.40 : 19,928.66 = 4,964.58 : x
  2. Step 2: Convert to fraction form
    13,285.40/19,928.66 = 4,964.58/x
  3. Step 3: Cross multiply
    13,285.40x = 19,928.66 × 4,964.58
  4. Step 4: Simplify right side
    13,285.40x = 98,937,402.04
  5. Step 5: Solve for x
    x = 98,937,402.04/13,285.40
  6. Step 6: Final answer
    x = 7,447.08

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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.