Home / 14,320.20-19,758.60-9,618.06

Finding the Fourth Proportional to 14,320.20, 19,758.60 and 9,618.06

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Solution

The fourth proportional to 14,320.20, 19,758.60 and 9,618.06 is: 13,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.20 : 19,758.60 = 9,618.06 : x
  2. Step 2: Convert to fraction form
    14,320.20/19,758.60 = 9,618.06/x
  3. Step 3: Cross multiply
    14,320.20x = 19,758.60 × 9,618.06
  4. Step 4: Simplify right side
    14,320.20x = 190,039,400.32
  5. Step 5: Solve for x
    x = 190,039,400.32/14,320.20
  6. Step 6: Final answer
    x = 13,270.72

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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.