Home / 14,711.14-20,291.16-12,281.68

Finding the Fourth Proportional to 14,711.14, 20,291.16 and 12,281.68

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Solution

The fourth proportional to 14,711.14, 20,291.16 and 12,281.68 is: 16,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.14 : 20,291.16 = 12,281.68 : x
  2. Step 2: Convert to fraction form
    14,711.14/20,291.16 = 12,281.68/x
  3. Step 3: Cross multiply
    14,711.14x = 20,291.16 × 12,281.68
  4. Step 4: Simplify right side
    14,711.14x = 249,209,533.95
  5. Step 5: Solve for x
    x = 249,209,533.95/14,711.14
  6. Step 6: Final answer
    x = 16,940.19

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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.