Home / 14,128.60-19,496.62-7,840.98

Finding the Fourth Proportional to 14,128.60, 19,496.62 and 7,840.98

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Solution

The fourth proportional to 14,128.60, 19,496.62 and 7,840.98 is: 10,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.60 : 19,496.62 = 7,840.98 : x
  2. Step 2: Convert to fraction form
    14,128.60/19,496.62 = 7,840.98/x
  3. Step 3: Cross multiply
    14,128.60x = 19,496.62 × 7,840.98
  4. Step 4: Simplify right side
    14,128.60x = 152,872,607.49
  5. Step 5: Solve for x
    x = 152,872,607.49/14,128.60
  6. Step 6: Final answer
    x = 10,820.08

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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.