Home / 14,106.40-21,146.40-5,347.20

Finding the Fourth Proportional to 14,106.40, 21,146.40 and 5,347.20

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Solution

The fourth proportional to 14,106.40, 21,146.40 and 5,347.20 is: 8,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.40 : 21,146.40 = 5,347.20 : x
  2. Step 2: Convert to fraction form
    14,106.40/21,146.40 = 5,347.20/x
  3. Step 3: Cross multiply
    14,106.40x = 21,146.40 × 5,347.20
  4. Step 4: Simplify right side
    14,106.40x = 113,074,030.08
  5. Step 5: Solve for x
    x = 113,074,030.08/14,106.40
  6. Step 6: Final answer
    x = 8,015.80

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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.