Home / 18,390.13-25,374.60-10,430.26

Finding the Fourth Proportional to 18,390.13, 25,374.60 and 10,430.26

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Solution

The fourth proportional to 18,390.13, 25,374.60 and 10,430.26 is: 14,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.13 : 25,374.60 = 10,430.26 : x
  2. Step 2: Convert to fraction form
    18,390.13/25,374.60 = 10,430.26/x
  3. Step 3: Cross multiply
    18,390.13x = 25,374.60 × 10,430.26
  4. Step 4: Simplify right side
    18,390.13x = 264,663,675.40
  5. Step 5: Solve for x
    x = 264,663,675.40/18,390.13
  6. Step 6: Final answer
    x = 14,391.62

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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.