Home / 7,528.19-10,378.69-6,347.21

Finding the Fourth Proportional to 7,528.19, 10,378.69 and 6,347.21

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Solution

The fourth proportional to 7,528.19, 10,378.69 and 6,347.21 is: 8,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.19 : 10,378.69 = 6,347.21 : x
  2. Step 2: Convert to fraction form
    7,528.19/10,378.69 = 6,347.21/x
  3. Step 3: Cross multiply
    7,528.19x = 10,378.69 × 6,347.21
  4. Step 4: Simplify right side
    7,528.19x = 65,875,673.06
  5. Step 5: Solve for x
    x = 65,875,673.06/7,528.19
  6. Step 6: Final answer
    x = 8,750.54

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Half scale
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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.