Home / 14,258.80-21,387.48-4,899.68

Finding the Fourth Proportional to 14,258.80, 21,387.48 and 4,899.68

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Solution

The fourth proportional to 14,258.80, 21,387.48 and 4,899.68 is: 7,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.80 : 21,387.48 = 4,899.68 : x
  2. Step 2: Convert to fraction form
    14,258.80/21,387.48 = 4,899.68/x
  3. Step 3: Cross multiply
    14,258.80x = 21,387.48 × 4,899.68
  4. Step 4: Simplify right side
    14,258.80x = 104,791,808.01
  5. Step 5: Solve for x
    x = 104,791,808.01/14,258.80
  6. Step 6: Final answer
    x = 7,349.27

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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.