Home / 18,386.82-25,374.53-10,430.60

Finding the Fourth Proportional to 18,386.82, 25,374.53 and 10,430.60

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Solution

The fourth proportional to 18,386.82, 25,374.53 and 10,430.60 is: 14,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.82 : 25,374.53 = 10,430.60 : x
  2. Step 2: Convert to fraction form
    18,386.82/25,374.53 = 10,430.60/x
  3. Step 3: Cross multiply
    18,386.82x = 25,374.53 × 10,430.60
  4. Step 4: Simplify right side
    18,386.82x = 264,671,471.82
  5. Step 5: Solve for x
    x = 264,671,471.82/18,386.82
  6. Step 6: Final answer
    x = 14,394.63

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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.