Home / 7,478.76-10,314.63-6,580.56

Finding the Fourth Proportional to 7,478.76, 10,314.63 and 6,580.56

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Solution

The fourth proportional to 7,478.76, 10,314.63 and 6,580.56 is: 9,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.76 : 10,314.63 = 6,580.56 : x
  2. Step 2: Convert to fraction form
    7,478.76/10,314.63 = 6,580.56/x
  3. Step 3: Cross multiply
    7,478.76x = 10,314.63 × 6,580.56
  4. Step 4: Simplify right side
    7,478.76x = 67,876,041.59
  5. Step 5: Solve for x
    x = 67,876,041.59/7,478.76
  6. Step 6: Final answer
    x = 9,075.84

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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.