Home / 11,356.34-15,670.35-6,319.22

Finding the Fourth Proportional to 11,356.34, 15,670.35 and 6,319.22

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Solution

The fourth proportional to 11,356.34, 15,670.35 and 6,319.22 is: 8,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.34 : 15,670.35 = 6,319.22 : x
  2. Step 2: Convert to fraction form
    11,356.34/15,670.35 = 6,319.22/x
  3. Step 3: Cross multiply
    11,356.34x = 15,670.35 × 6,319.22
  4. Step 4: Simplify right side
    11,356.34x = 99,024,389.13
  5. Step 5: Solve for x
    x = 99,024,389.13/11,356.34
  6. Step 6: Final answer
    x = 8,719.75

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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.