Home / 10,368.28-15,486.34-9,379.58

Finding the Fourth Proportional to 10,368.28, 15,486.34 and 9,379.58

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Solution

The fourth proportional to 10,368.28, 15,486.34 and 9,379.58 is: 14,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.28 : 15,486.34 = 9,379.58 : x
  2. Step 2: Convert to fraction form
    10,368.28/15,486.34 = 9,379.58/x
  3. Step 3: Cross multiply
    10,368.28x = 15,486.34 × 9,379.58
  4. Step 4: Simplify right side
    10,368.28x = 145,255,364.94
  5. Step 5: Solve for x
    x = 145,255,364.94/10,368.28
  6. Step 6: Final answer
    x = 14,009.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.