Home / 14,276.09-21,390.55-4,911.08

Finding the Fourth Proportional to 14,276.09, 21,390.55 and 4,911.08

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Solution

The fourth proportional to 14,276.09, 21,390.55 and 4,911.08 is: 7,358.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.09 : 21,390.55 = 4,911.08 : x
  2. Step 2: Convert to fraction form
    14,276.09/21,390.55 = 4,911.08/x
  3. Step 3: Cross multiply
    14,276.09x = 21,390.55 × 4,911.08
  4. Step 4: Simplify right side
    14,276.09x = 105,050,583.06
  5. Step 5: Solve for x
    x = 105,050,583.06/14,276.09
  6. Step 6: Final answer
    x = 7,358.50

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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.