Home / 14,140.19-21,219.23-7,904.30

Finding the Fourth Proportional to 14,140.19, 21,219.23 and 7,904.30

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Solution

The fourth proportional to 14,140.19, 21,219.23 and 7,904.30 is: 11,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.19 : 21,219.23 = 7,904.30 : x
  2. Step 2: Convert to fraction form
    14,140.19/21,219.23 = 7,904.30/x
  3. Step 3: Cross multiply
    14,140.19x = 21,219.23 × 7,904.30
  4. Step 4: Simplify right side
    14,140.19x = 167,723,114.61
  5. Step 5: Solve for x
    x = 167,723,114.61/14,140.19
  6. Step 6: Final answer
    x = 11,861.45

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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.