Home / 14,389.95-19,861.20-9,671.51

Finding the Fourth Proportional to 14,389.95, 19,861.20 and 9,671.51

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Solution

The fourth proportional to 14,389.95, 19,861.20 and 9,671.51 is: 13,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.95 : 19,861.20 = 9,671.51 : x
  2. Step 2: Convert to fraction form
    14,389.95/19,861.20 = 9,671.51/x
  3. Step 3: Cross multiply
    14,389.95x = 19,861.20 × 9,671.51
  4. Step 4: Simplify right side
    14,389.95x = 192,087,695.11
  5. Step 5: Solve for x
    x = 192,087,695.11/14,389.95
  6. Step 6: Final answer
    x = 13,348.74

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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.