Home / 10,013.60-14,971.80-7,389.20

Finding the Fourth Proportional to 10,013.60, 14,971.80 and 7,389.20

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Solution

The fourth proportional to 10,013.60, 14,971.80 and 7,389.20 is: 11,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.60 : 14,971.80 = 7,389.20 : x
  2. Step 2: Convert to fraction form
    10,013.60/14,971.80 = 7,389.20/x
  3. Step 3: Cross multiply
    10,013.60x = 14,971.80 × 7,389.20
  4. Step 4: Simplify right side
    10,013.60x = 110,629,624.56
  5. Step 5: Solve for x
    x = 110,629,624.56/10,013.60
  6. Step 6: Final answer
    x = 11,047.94

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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.