Home / 14,152.40-21,228.60-7,810.10

Finding the Fourth Proportional to 14,152.40, 21,228.60 and 7,810.10

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Solution

The fourth proportional to 14,152.40, 21,228.60 and 7,810.10 is: 11,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.40 : 21,228.60 = 7,810.10 : x
  2. Step 2: Convert to fraction form
    14,152.40/21,228.60 = 7,810.10/x
  3. Step 3: Cross multiply
    14,152.40x = 21,228.60 × 7,810.10
  4. Step 4: Simplify right side
    14,152.40x = 165,797,488.86
  5. Step 5: Solve for x
    x = 165,797,488.86/14,152.40
  6. Step 6: Final answer
    x = 11,715.15

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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.