Home / 14,262.95-19,683.56-7,889.51

Finding the Fourth Proportional to 14,262.95, 19,683.56 and 7,889.51

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Solution

The fourth proportional to 14,262.95, 19,683.56 and 7,889.51 is: 10,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.95 : 19,683.56 = 7,889.51 : x
  2. Step 2: Convert to fraction form
    14,262.95/19,683.56 = 7,889.51/x
  3. Step 3: Cross multiply
    14,262.95x = 19,683.56 × 7,889.51
  4. Step 4: Simplify right side
    14,262.95x = 155,293,579.40
  5. Step 5: Solve for x
    x = 155,293,579.40/14,262.95
  6. Step 6: Final answer
    x = 10,887.90

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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.