Home / 10,370.85-14,291.31-7,378.30

Finding the Fourth Proportional to 10,370.85, 14,291.31 and 7,378.30

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Solution

The fourth proportional to 10,370.85, 14,291.31 and 7,378.30 is: 10,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.85 : 14,291.31 = 7,378.30 : x
  2. Step 2: Convert to fraction form
    10,370.85/14,291.31 = 7,378.30/x
  3. Step 3: Cross multiply
    10,370.85x = 14,291.31 × 7,378.30
  4. Step 4: Simplify right side
    10,370.85x = 105,445,572.57
  5. Step 5: Solve for x
    x = 105,445,572.57/10,370.85
  6. Step 6: Final answer
    x = 10,167.50

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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.