Home / 10,161.40-14,023.02-5,685.32

Finding the Fourth Proportional to 10,161.40, 14,023.02 and 5,685.32

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Solution

The fourth proportional to 10,161.40, 14,023.02 and 5,685.32 is: 7,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.40 : 14,023.02 = 5,685.32 : x
  2. Step 2: Convert to fraction form
    10,161.40/14,023.02 = 5,685.32/x
  3. Step 3: Cross multiply
    10,161.40x = 14,023.02 × 5,685.32
  4. Step 4: Simplify right side
    10,161.40x = 79,725,356.07
  5. Step 5: Solve for x
    x = 79,725,356.07/10,161.40
  6. Step 6: Final answer
    x = 7,845.90

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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.