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Finding the Fourth Proportional to 10,858.51, 14,957.93 and 9,259.95

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Solution

The fourth proportional to 10,858.51, 14,957.93 and 9,259.95 is: 12,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.51 : 14,957.93 = 9,259.95 : x
  2. Step 2: Convert to fraction form
    10,858.51/14,957.93 = 9,259.95/x
  3. Step 3: Cross multiply
    10,858.51x = 14,957.93 × 9,259.95
  4. Step 4: Simplify right side
    10,858.51x = 138,509,683.90
  5. Step 5: Solve for x
    x = 138,509,683.90/10,858.51
  6. Step 6: Final answer
    x = 12,755.86

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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.