Home / 9,701.20-13,389.40-5,722.08

Finding the Fourth Proportional to 9,701.20, 13,389.40 and 5,722.08

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Solution

The fourth proportional to 9,701.20, 13,389.40 and 5,722.08 is: 7,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.20 : 13,389.40 = 5,722.08 : x
  2. Step 2: Convert to fraction form
    9,701.20/13,389.40 = 5,722.08/x
  3. Step 3: Cross multiply
    9,701.20x = 13,389.40 × 5,722.08
  4. Step 4: Simplify right side
    9,701.20x = 76,615,217.95
  5. Step 5: Solve for x
    x = 76,615,217.95/9,701.20
  6. Step 6: Final answer
    x = 7,897.50

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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.