Home / 14,127.92-19,495.98-7,840.70

Finding the Fourth Proportional to 14,127.92, 19,495.98 and 7,840.70

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Solution

The fourth proportional to 14,127.92, 19,495.98 and 7,840.70 is: 10,819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.92 : 19,495.98 = 7,840.70 : x
  2. Step 2: Convert to fraction form
    14,127.92/19,495.98 = 7,840.70/x
  3. Step 3: Cross multiply
    14,127.92x = 19,495.98 × 7,840.70
  4. Step 4: Simplify right side
    14,127.92x = 152,862,130.39
  5. Step 5: Solve for x
    x = 152,862,130.39/14,127.92
  6. Step 6: Final answer
    x = 10,819.86

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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.