Home / 14,699.99-20,278.20-9,312.92

Finding the Fourth Proportional to 14,699.99, 20,278.20 and 9,312.92

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Solution

The fourth proportional to 14,699.99, 20,278.20 and 9,312.92 is: 12,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.99 : 20,278.20 = 9,312.92 : x
  2. Step 2: Convert to fraction form
    14,699.99/20,278.20 = 9,312.92/x
  3. Step 3: Cross multiply
    14,699.99x = 20,278.20 × 9,312.92
  4. Step 4: Simplify right side
    14,699.99x = 188,849,152.95
  5. Step 5: Solve for x
    x = 188,849,152.95/14,699.99
  6. Step 6: Final answer
    x = 12,846.89

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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.