Home / 7,897.04-10,887.76-6,475.60

Finding the Fourth Proportional to 7,897.04, 10,887.76 and 6,475.60

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Solution

The fourth proportional to 7,897.04, 10,887.76 and 6,475.60 is: 8,928.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.04 : 10,887.76 = 6,475.60 : x
  2. Step 2: Convert to fraction form
    7,897.04/10,887.76 = 6,475.60/x
  3. Step 3: Cross multiply
    7,897.04x = 10,887.76 × 6,475.60
  4. Step 4: Simplify right side
    7,897.04x = 70,504,778.66
  5. Step 5: Solve for x
    x = 70,504,778.66/7,897.04
  6. Step 6: Final answer
    x = 8,928.00

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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.