Home / 7,421.02-10,260.70-6,486.84

Finding the Fourth Proportional to 7,421.02, 10,260.70 and 6,486.84

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Solution

The fourth proportional to 7,421.02, 10,260.70 and 6,486.84 is: 8,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.02 : 10,260.70 = 6,486.84 : x
  2. Step 2: Convert to fraction form
    7,421.02/10,260.70 = 6,486.84/x
  3. Step 3: Cross multiply
    7,421.02x = 10,260.70 × 6,486.84
  4. Step 4: Simplify right side
    7,421.02x = 66,559,519.19
  5. Step 5: Solve for x
    x = 66,559,519.19/7,421.02
  6. Step 6: Final answer
    x = 8,969.05

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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.