Home / 7,407.02-10,215.60-6,291.74

Finding the Fourth Proportional to 7,407.02, 10,215.60 and 6,291.74

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Solution

The fourth proportional to 7,407.02, 10,215.60 and 6,291.74 is: 8,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.02 : 10,215.60 = 6,291.74 : x
  2. Step 2: Convert to fraction form
    7,407.02/10,215.60 = 6,291.74/x
  3. Step 3: Cross multiply
    7,407.02x = 10,215.60 × 6,291.74
  4. Step 4: Simplify right side
    7,407.02x = 64,273,899.14
  5. Step 5: Solve for x
    x = 64,273,899.14/7,407.02
  6. Step 6: Final answer
    x = 8,677.43

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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.