Home / 11,216.40-15,477.29-6,436.10

Finding the Fourth Proportional to 11,216.40, 15,477.29 and 6,436.10

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Solution

The fourth proportional to 11,216.40, 15,477.29 and 6,436.10 is: 8,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.40 : 15,477.29 = 6,436.10 : x
  2. Step 2: Convert to fraction form
    11,216.40/15,477.29 = 6,436.10/x
  3. Step 3: Cross multiply
    11,216.40x = 15,477.29 × 6,436.10
  4. Step 4: Simplify right side
    11,216.40x = 99,613,386.17
  5. Step 5: Solve for x
    x = 99,613,386.17/11,216.40
  6. Step 6: Final answer
    x = 8,881.05

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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.