Home / 10,427.31-15,656.81-9,110.31

Finding the Fourth Proportional to 10,427.31, 15,656.81 and 9,110.31

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Solution

The fourth proportional to 10,427.31, 15,656.81 and 9,110.31 is: 13,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.31 : 15,656.81 = 9,110.31 : x
  2. Step 2: Convert to fraction form
    10,427.31/15,656.81 = 9,110.31/x
  3. Step 3: Cross multiply
    10,427.31x = 15,656.81 × 9,110.31
  4. Step 4: Simplify right side
    10,427.31x = 142,638,347.16
  5. Step 5: Solve for x
    x = 142,638,347.16/10,427.31
  6. Step 6: Final answer
    x = 13,679.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.