Home / 10,055.90-13,877.02-5,579.54

Finding the Fourth Proportional to 10,055.90, 13,877.02 and 5,579.54

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Solution

The fourth proportional to 10,055.90, 13,877.02 and 5,579.54 is: 7,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.90 : 13,877.02 = 5,579.54 : x
  2. Step 2: Convert to fraction form
    10,055.90/13,877.02 = 5,579.54/x
  3. Step 3: Cross multiply
    10,055.90x = 13,877.02 × 5,579.54
  4. Step 4: Simplify right side
    10,055.90x = 77,427,388.17
  5. Step 5: Solve for x
    x = 77,427,388.17/10,055.90
  6. Step 6: Final answer
    x = 7,699.70

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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.